[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
** Changed in: baltix Status: Triaged => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Sorry for the confusion, *I asked* I have a couple of questions about your Sony Vaio with Pentium M: What happens when you try to boot a PAE kernel with forcepae? Do you get an error message? Black screen? Are you sure it is not 'only' a problem with some other hardware, for example graphics or wifi? You could try to boot with the boot option 'text' and switch off the wifi if possible. *The owner replied* Most of my 'nonpae' observations have come inside VirtualBox where I noticed the 'pae/nx' checkbox is greyed out and every distro. I try that is pae only, informs me that I have a cpu that doesn't support the pae option. Trying 'forcepae' using a recent kernel eventually ended with a blank black screen. I tried to use a Gparted live CD recently and that gave me a similar message when it attempted to boot. Yesterday I squeezed some unused space out of my HDD using Gparted and created an empty new extra linux partition (about 9 GiB) and I'll try a 'real metal' install of a pae kernel sometime later today. *I replied* You can test that it is not problems with the graphics chip using the boot options 'forcepae text' in a 'standard Lubuntu 14.04 LTS installer'. *And the owner solved the problem* You were quite correct to keep asking questions. Using the 'forcepae' parameter I have now successfully installed Lubuntu 14.04 on 'baremetal'. I'm happy with that as you can imagine. There are many ways that I tried before that failed but obviously there is nothing that replaces a 'baremetal' install. My first clue that it may work was when I used 'forcepae' to boot from the LiveCD that I made and that worked. Apologies for causing you extra work and innocently misleading your research. All's well that ends well, as the saying goes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
The vast majority of Pentium M and Celeron M CPUs are suitable for fakepae or forcepae and can work with PAE kernels. But some of these processors need a non-pae kernel. We found a Pentium M 1.70 GHz which does not work with forcepae. It gives the following output from cpuid|grep ^0001 0001 06d6 0816 0180 afe9fbbf So I have updated the wiki page https://help.ubuntu.com/community/Lubuntu-fake-PAE See the details at https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test Now I think there is even more reason to continue the work with a non- pae kernel for Lubuntu and ToriOS. See this link https://help.ubuntu.com/community/9w -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
We found a Pentium M 1.70 GHz which does not work with forcepae. It gives the following output from cpuid|grep ^0001 0001 06d6 0816 0180 afe9fbbf What happens when you try to boot with forcepae? Do you get an error message? Black screen? In the wiki you have mentioned afe9fbbf for both of the CPUs that lack PAE capability but the 1.2GHz that was reported to not work has cpuid a7e9fbbf and the 1.7Ghz afe9fbbf which are different (a7,af) Compiling a non-PAE kernel is trivial - you just need to `apt-get source linux-image`, set CONFIG_X86_PAE=y in .config then `dpkg-buildpackage -b -uc`. You could easily automate this from a 32-bit 14.04 daily cron job that checks whether there is a new kernel version, and if so rebuild the kernel and pushes the result to a PPA (which would have to be enabled by default in Lubuntu or whatever). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Hi Chris, 1. It is not my computer. I have one with a very similar Pentium M CPU which works with forcepae. I have asked the same questions but not yet received a full answer from the owner. I will ask again ... 2. Thanks for finding the difference between the cpuid flags a7e9fbbf and afe9fbbf (a7,af). The wiki page is corrected now. 3. In post #279 you told us about Will Haley's instructions to make a syslinux system. Starting from those instructions I made a system that can install an Ubuntu minimal text screen system with a non-pae kernel compiled by Phill Whiteside. This is described in the following link https://help.ubuntu.com/community/9w It is very easy to expand that minimal Ubuntu system into Lubuntu or Xubuntu (or an Ubuntu Server). If I understand it correctly, Phill intends to maintain the non-pae kernel. Anyway, thanks for the tips about making and keeping a non-pae kernel up to date :-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
please try lubuntu/xubunu on such old hardware -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
tried the ubuntu-14.04-desktop-i386.iso on my Lenovo E600A with [--forcepae] parameter. I seemed successfully installed. But the desktop showed me slowly just as a slow-motion video :-( Maybe the forcepae caused that problem. I doubt it, a more likely cause is that you don't have 3D acceleration enabled. Try running '/usr/lib/nux/unity_support_test -p' or 'glxinfo|grep OpenGL' to check and install the proprietary Nvidia drivers. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Ｉtried the ubuntu-14.04-desktop-i386.iso on my Lenovo E600A with [--forcepae] parameter. I seemed successfully installed. But the desktop showed me slowly just as a slow-motion video :-( Maybe the forcepae caused that problem. Hope David Henningsson can provide us another ubuntu-14.04-desktop-i386-nonpae.iso. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Hey guys, So, I was looking for Ubuntu because Win Xp is not supported anymore. I carefully readed everything here, but i have no clue how i could fix my problem. Can please someone explain what i have to do, in a language that a noob like me can understand? I never did anything with linux. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Hi Luis, Now that I have got into it I might do this if I feel the need to upgrade to the latest greatest version - so, thanks for the howto. Unfortunately I am afraid that many disenfranchised Win XP users will not fiddle around like this (or even read this thread to find how to). It's a pity because, once I got past the pae issue I found something far more mature and developed than I ever suspected. I know there is probably some good reason but it would be nice if the next version could automatically add the 'forcepae' if it found the appropriate conditions to do so. @l-colin, 14.04 works flawlessly in Celeron/Pentium M processor systems. You just need to add forcepae do the kernel command line (at boot) On a livecd, press anykey as soon as it loads (the first purple screen). Use the F6 option to add the forcepae. You'll have something like: ...initrd.lz quiet splash -- forcepae -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
This may not have been a burning issue in the past but, with Win XP going unsupported, there are many Celeron/Pentium M processor systems (concurrent with Win XP). that are now looking for easy solutions. I am in exactly that position and have never touched any flavour of Linux before. I needed something reasonably well packaged without a huge learning curve up front. I tried various other flavours of Linux (including Lubuntu 12.04) and none of them really floated my boat but then I found the nonpae 12.04 desktop build mentioned by Dave Henningsson in reply #84 and that is exactly what an ignorant exile from Win XP was looking for. Easy to install, well packaged, no learning of command line fiddles and easy to use for a Linux first timer. Thanks Dave. If it was that easy without searching then I guess more ex XP users would migrate rather than give up and go away. Incidentally - Dave said he hadn't fully tested this build - I have given it quite a bending and have found no problems so far. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
@l-colin, 14.04 works flawlessly in Celeron/Pentium M processor systems. You just need to add forcepae do the kernel command line (at boot) On a livecd, press anykey as soon as it loads (the first purple screen). Use the F6 option to add the forcepae. You'll have something like: ...initrd.lz quiet splash -- forcepae The only problem is that 14.04 is not released yet. It might be released on April 17th. However, you can download the current development version at: http://cdimage.ubuntu.com/daily-live/current/trusty-desktop-i386.iso If you update packages after the 14.04 release date, it will update them to match the stable version. It will be some dozens of MB but, besides that, no greater side effect. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
a todos: Gracias por la ayuda! Stan On Tue, April 8, 2014 1:03 pm, Luiz Angelo Daros de Luca wrote: @l-colin, 14.04 works flawlessly in Celeron/Pentium M processor systems. You just need to add forcepae do the kernel command line (at boot) On a livecd, press anykey as soon as it loads (the first purple screen). Use the F6 option to add the forcepae. You'll have something like: ...initrd.lz quiet splash -- forcepae -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Good news, the forcepae patch got added to the upstream kernel source: http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=69f2366c9456d0ce784cf5aba87ee77eeadc1d5e -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
:-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
oh, apparently kubuntu daily-build was a little bit behind, i did only check ubuntu and lubuntu and did not expect, that kubuntu iso apparently did not have the most recent kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Yeah Thank you devs, thank you Roland, thank you Chris and all of you. Ok, now I'm gonna try and download the iso... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
This is absolutly amasing news guyes, had lost any hope that this status
on this bug would ever change. Thankyou to the most persistent advocats
arguing this bug should be solved, and not least to Chris and others
involved in figuring out howto...
After reciving these great news, the first thing I did was to download the
Kubuntu Trusty daily image (2014.03.06) from cdimages.ubunut.com. Used a
12.04.4 box an flashed the Trusty ISO to an USB stick, using the Start Disk
Creator a so often before. Booting my good old ThinkPad R51 from the USB
stick, just to eksperience the your CPU i not supported ... no PAE. Restarded
the R51 and added the kernel forcepae parameter to the syslinux parameter
line.
Things looked excactly the same as so often before, installing any sort of
12.04 ubuntu flavors. Back to the other ubuntu box, re-fdisk and format the
USB, Start Disk Creator and then ever so often used grub2 installation to USB
when creating 12.04.x USBs for older hardware:
sudo grub-install --recheck --boot-directory /media/usb-stick/boot /dev/sdX
nano /media/usb-stick/boot/grub.cfg
menuentry 'Start Kubuntu' --class ubuntu --class gnu-linux --class gnu --class
os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
echo'Indlaeser Linux 3.13.0-16-generic-pae ...'
linux /casper/vmlinuz file=/cdrom/preseed/kubuntu.seed boot=casper
maybe-ubiquity quiet splash --
echo'Indlaeser startramdisk ...'
initrd /casper/initrd.lz
}
Returned the stick to the good old R51, at it just booted from the USB
like a charm - just amasing. So right now upgrades from Precise to
Trusty should work correct ?, but the old syslinux original of this
bug still persist right ?.
So new users, and users unaware of this bug, will still experienc
problems booting CDs or USB sticks created from ISOs, which with all the
good work and all the posting above seems almost unbearable to me...
--
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https://bugs.launchpad.net/bugs/930447
Title:
Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M
x86 Laptop due to bug in PAE kernel, initramfs or syslinux
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[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Restarded the R51 and added the kernel forcepae parameter to the syslinux parameter line. Things looked excactly the same as so often before, installing any sort of 12.04 ubuntu flavors. but the old syslinux original of this bug still persist right ?. No, it shouldn`t. If booted via syslinux and adding forcepae as a bootparam, it should boot - regardless if being botted via grub 16-bit mode or via syslinux or whatever. could you please re-check if you typed it correctly? does your method of creating a bootable iso really use the kernel from the recent cd-image, or maybe there`s an older kernel in place? if that fails for you and if you are that your cpu does have pae, please post the contents of /proc/cpuinfo. you may attach an usb cd-rom to your r51 and try to directly boot from that. i´m curious what`s going wrong here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
@roland #291 Booting Kubuntu Trusty from either USB or DVD (Kubuntu 700MB): Daily ISO 2014.03.06 = Kernel: Linux kubuntu 3.13.0-15-generic #35-Ubuntu SMP = not working Daily ISO 2014.03.07 = Kernel: Linux kubuntu 3.13.0-16-generic #36-Ubuntu SMP = working (without grub BL) I'm very sorry for this mistake, reported 1 day to soon then... Just downloaded the Kubuntu Trusty 2014.03.07, and it boots just fine with syslinux + forcepae (with the 3.13.0-16-generic #36 kernel). Even though booting (and installing) theese old boxes from buildin IDE-DVD takes forever compared to USB stik (less than 2 minutes boot). Thanks for the very fast response, and sorry for not dobbelt checking the kernel version. We (users) are no even precentet with instructions on how to boot these Pentium boxes, if omitting the forcepae parameter - very polished indeed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
this is really good news, thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
apparently, the trusty-tahr daily build cd-images already contain the fixed kernel, so if you have an affected system and want to try installing (l/x)ubuntu you can get them here: http://cdimage.ubuntu.com/lubuntu/daily-live/current/ http://cdimage.ubuntu.com/xubuntu/daily-live/current/ http://cdimage.ubuntu.com/daily-live/current/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Now it is time for me to say thank you :-) First of all, *I want to thank everybody contributing* to solving this bug, or complex of bugs, concerning Pentium M and Celeron M CPUs and new Ubuntu based kernels. Then I want to mention roland aus köln (devzero-c), who continued pushing this issue when we had given up (either completely or like me, resorting to work-arounds). And I want to thank Chris Bainbridge, who was able to do the actual bug- fixes that made the ship turn around. I don't know if you are a developer or a very skilled user, but you made a great difference. Finally I want to thank you Chris for sharing the link to instructions, that actually got me over the threshold to build a custom syslinux bootable system. I'm working right now on a debian system, that should be able to install from a CD/DVD or USB drive to very different systems (including very old and limited systems) by flashing compressed image files (img.xz files) or iso files and growing the file system when there is extra space available. I show the link again for everybody else, who might be interested. It works for me with a couple of minor tweaks, the main one that I needed to import a gpg key separately. Best regards sudodus alias Nio - Comment #279 - Chris Bainbridge (chris-bainbridge) wrote on 2014-03-03:#279 lkml: grub is jumping to the 32-bit entry point and skipping the entire real mode setup code. Bad grub. You don't need to build a syslinux bootable iso. You can boot the kernel from Grub in 16-bit mode by using the linux16 command http://www.gnu.org/software/grub/manual/html_node/linux16.html and initrd16 https://www.gnu.org/software/grub/manual/html_node/initrd16.html According to the discussion on LKML, linux16 is now the default on Fedora, and should be used by other distributions. (If you still want to build a custom syslinux bootable system, just for fun, see the instructions at http://willhaley.com/blog/create-a-custom-debian-live-environment/ - it's about 25 lines of code in total, and not difficult to follow) - -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
one thing to add - on lubuntu iso i just tested, entering a kernel param at boot/installation-time does not seem to find it`s way into grub.cfg - so it needs to be re-added after installation. since i´m not a long-time ubuntu user, i`m unsure if this a bug or by design -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
This bug was fixed in the package linux - 3.13.0-16.36 --- linux (3.13.0-16.36) trusty; urgency=low [ Tim Gardner ] * Release Tracking Bug - LP: #1287903 [ Andy Whitcroft ] * Revert [Config] lowlatency -- turn CONFIG_IRQ_FORCED_THREADING_DEFAULT off temporarily [ Chris Bainbridge ] * SAUCE: x86: set Pentium M as PAE capable - LP: #930447 [ Dave Jones ] * SAUCE: taint: repurpose TAINT_UNSAFE_SMP to TAINT_CPU_OUT_OF_SPEC - LP: #930447 [ Paolo Pisati ] * [Config] SND_DAVINCI_SOC SND_AM33XX_SOC_EVM =m * [Config] armhf: DRM_TILCDC=m [ Philippe Bergheaud ] * SAUCE: powerpc: fix xmon disassembler for little-endian - LP: #1286255 [ Tim Gardner ] * [Config] CONFIG_MICROCODE_EARLY=y * [Config] CONFIG_R8821AE=m * [Config] Add some virtio drivers to -virtual - LP: #1287401 * [Config] inclusion-list: vesafb and virtio_balloon are built-in * SAUCE: vmwgfx: Expose U32_MAX [ Upstream Kernel Changes ] * Revert drm/vmwgfx: Fix regression caused by drm/ttm: make ttm reservation calls behave like reservation calls * Revert drm/vmwgfx: Fix the driver for large dma addresses * usb: ehci: fix deadlock when threadirqs option is used - LP: #1274987, #1279081 * Staging: rtl8812ae: Add Realtek 8821 PCI WIFI driver - LP: #1287298 * intel_pstate: Remove periodic P state boost * intel_pstate: Add trace point to report internal state. * intel_pstate: Take core C0 time into account for core busy calculation * intel_pstate: Use LFM bus ratio as min ratio/P state * intel_pstate: Add support for Baytrail turbo P states * intel_pstate: Change busy calculation to use fixed point math. * PM / hibernate: Fix restore hang in freeze_processes() * ipmi: remove deprecated IRQF_DISABLED * ipmi: use USEC_PER_SEC instead of 100 for more meaningful * ipmi: fix timeout calculation when bmc is disconnected * ipmi: Cleanup error return * ipmi: Add missing rv in ipmi_parisc_probe() * drm/ttm: ttm object security fixes for render nodes * drivers: gpu: Mark functions as static in vmwgfx_kms.c * drivers: gpu: Mark functions as static in vmwgfx_buffer.c * drivers: gpu: Mark functions as static in vmwgfx_fence.c * drm/vmwgfx: Fix the driver for large dma addresses * drm/vmwgfx: Update the svga3d register header file for new device version * drm/vmwgfx: Update the driver user-space interface for guest-backed objects * drm/vmwgfx: Replace vram_size with prim_bb_mem for calculation of max resolution * drm/vmwgfx: Update the svga register definition * drm/vmwgfx: Adapt capability reporting to new hardware version * drm/vmwgfx: Add MOB management * drm/vmwgfx: Hook up MOBs to TTM as a separate memory type * drm/vmwgfx: Read bounding box memory from the appropriate register * drm/vmwgfx: Add the possibility to validate a buffer as a MOB * drm/vmwgfx: Hook up guest-backed queries * drm/vmwgfx: Detach backing store from its resources when it is evicted * drm/vmwgfx: Hook up guest-backed contexts * drm/vmwgfx: Hook up guest-backed surfaces * drm/vmwgfx: Add guest-backed shaders * drm/vmwgfx: Validate guest-backed shader const commands * drm/vmwgfx: Add new unused (by user-space) commands to the verifier * drm/vmwgfx: Enable 3D for new hardware version * drm/vmwgfx: Fix up the vmwgfx_drv.h header for new files * drm/vmwgfx: Extend the command verifier to handle guest-backed on / off * drm/vmwgfx: Make sure that the multisampling is off * drm/vmwgfx: Implement a buffer object synccpu ioctl. * drm/vmwgfx: Add a parameter to get max MOB memory size * drm/vmwgfx: Block the BIND_SHADERCONSTS command * drm/vmwgfx: Track context bindings and scrub them upon exiting execbuf * drm/vmwgfx: Persistent tracking of context bindings * drm/vmwgfx: Ditch the vmw_dummy_query_bo_prepare function * drm/vmwgfx: Use the linux DMA api also for MOBs * drm/vmwgfx: Update otable definitions * drm/vmwgfx: Fix surface framebuffer check for guest-backed surfaces * drm/vmwgfx: Implement 64-bit Otable- and MOB binding v2 * drm/vmwgfx: Silence the device command verifier * drm/vmwgfx: Invalidate surface on non-readback unbind * drm/vmwgfx: Fix recently introduced sparse / smatch warnings and errors * drm/vmwgfx: Don't commit staged bindings if execbuf fails * drm/vmwgfx: Fix regression caused by drm/ttm: make ttm reservation calls behave like reservation calls * drm/vmwgfx: Fix SET_SHADER_CONST emulation on guest-backed devices * drm/vmwgfx: Fix legacy surface reference size copyback * drm/vmwgfx: Emulate legacy shaders on guest-backed devices v2 * drm/vmwgfx: Detect old user-space drivers and set up legacy emulation v2 * drm/vmwgfx: Reemit context bindings when necessary v2 * vmwgfx: Fix unitialized stack read in vmw_setup_otable_base * drm/vmwgfx: Fix a couple of sparse warnings and errors * drm/vmwgfx: Get maximum mob size from register
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
** Changed in: syslinux (Ubuntu) Status: Confirmed = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
@Chris -- I have taken the liberty of cleaning up the commentary on those two patches and applying them to a 14.04 kernel for testing. You might want to do something similar (feel free to steal the text I used and clean it up) and then submit the patches together to upstream for consideration; as things have been left I doubt they will be applied as the diff and commentary were separate. Also could you test these kernels and let me know if they work at all, I do not have affected h/w. We can then consider this for the 14.04 kernel. Kernels are at the URL below: http://people.canonical.com/~apw/lp930447-trusty/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
works for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Works in my IBM Thinkpad T42 with Pentium M without a PAE flag but with PAE capability. But I have only booted via grub, because I cannot remaster an iso file. Did you boot from syslinux, Roland? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
lkml: grub is jumping to the 32-bit entry point and skipping the entire real mode setup code. Bad grub. You don't need to build a syslinux bootable iso. You can boot the kernel from Grub in 16-bit mode by using the linux16 command http://www.gnu.org/software/grub/manual/html_node/linux16.html and initrd16 https://www.gnu.org/software/grub/manual/html_node/initrd16.html According to the discussion on LKML, linux16 is now the default on Fedora, and should be used by other distributions. (If you still want to build a custom syslinux bootable system, just for fun, see the instructions at http://willhaley.com/blog/create-a-custom- debian-live-environment/ - it's about 25 lines of code in total, and not difficult to follow) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
ERROR: PAE is disabled on this Pentium M (PAE can potentially be enabled with kernel parameter forcepae - this is unsupported, may cause unknown problems, and will taint the kernel) This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for your CPU -o- So I used the following modified lines in grub.cfg linux16 /boot/vmlinuz-3.13.0-14-generic root=UUID=string ro quiet splash forcepae $vt_handoff initrd16/boot/initrd.img-3.13.0-14-generic and it boots and runs :-) WARNING: Forcing PAE in CPU flags ... ** Attachment added: computer-info.zip https://bugs.launchpad.net/baltix/+bug/930447/+attachment/4005394/+files/computer-info.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Thanks Chris :-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Thank you Brian, Chris and everyone sudodus and everyone involved. נשלח מנייד Sent from mobile On Mar 3, 2014 8:55 PM, sudodus nio.wikl...@gmail.com wrote: ERROR: PAE is disabled on this Pentium M (PAE can potentially be enabled with kernel parameter forcepae - this is unsupported, may cause unknown problems, and will taint the kernel) This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for your CPU -o- So I used the following modified lines in grub.cfg linux16 /boot/vmlinuz-3.13.0-14-generic root=UUID=string ro quiet splash forcepae $vt_handoff initrd16/boot/initrd.img-3.13.0-14-generic and it boots and runs :-) WARNING: Forcing PAE in CPU flags ... ** Attachment added: computer-info.zip https://bugs.launchpad.net/baltix/+bug/930447/+attachment/4005394/+files/computer-info.zip -- You received this bug notification because you are subscribed to the bug report. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux Status in “linux” package in Ubuntu: Confirmed Status in “syslinux” package in Ubuntu: Confirmed Status in Baltix GNU/Linux: Triaged Bug description: Ubuntu 12.04 doesn't start from Desktop CD or USB with syslinux boot loader on Pentium M 1.6Ghz or faster Pentium M CPU - displays error message about missing PAE feature in CPU, but *the same* *Ubuntu 12.04* Desktop CD/LiveUSB starts fine on *the same CPU* (and same PAE kernel) if GRUB boot loader is used, for example when WUBI or LiveUSB with GRUB boot loader, like Multisystem (http://liveusb.info/dotclear/index.php?pages/install ) is used! The error message is: This kernel requires the following features not present on the CPU: pae. Unable to boot - please use a kernel appropriate for you CPU. THIS IS AN IMPORTANT REGRESSION! People are able to install and successfully use Ubuntu 12.04 on such pretty new hardware, like IBM Thinkpad T42 laptop with Pentium M 1700Mhz processor, but the bug in syslinux (or something related) forbids Ubuntu 12.04 installation. This bug is reproducible on lots of computers, there are several log files and /proc/cpuinfo file attached to this bugreport, AFAIK it's enough to reopen this bug. --- ApportVersion: 1.23-0ubuntu4 Architecture: i386 CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied MachineType: IBM 2373PPU dmi.bios.date: 06/18/2007 dmi.bios.vendor: IBM dmi.bios.version: 1RETDRWW (3.23 ) dmi.board.name: 2373PPU dmi.board.vendor: IBM dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: IBM dmi.chassis.version: Not Available dmi.modalias: dmi:bvnIBM:bvr1RETDRWW(3.23):bd06/18/2007:svnIBM:pn2373PPU:pvrThinkPadT42:rvnIBM:rn2373PPU:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable: dmi.product.name: 2373PPU dmi.product.version: ThinkPad T42 dmi.sys.vendor: IBM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
According to the discussion on LKML, linux16 is now the default on Fedora, and should be used by other distributions. i installed fedora20 for a test and so did hpa, and for both of us, the result is different from what is being told: http://marc.info/?l=linux-kernelm=139380554401194w=2 i do not see any linux16 entry in grub.cfg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
i just tested your patch on ubuntu 13.10 with kernel from 14.04 repository (complete package build) works like a charm! i would recommend adding the newly introduced param to to Documentation /kernel-parameters.txt , see my patch at https://bugs.launchpad.net/baltix/+bug/930447/comments/224 Thanks for your work ! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
There were *very* strong signals that the board, deciding about the main-stream ubuntu edition, had decided to stop supporting non-pae CPUs including Pentium M amd Celeron M, and that the decision was not going to be changed. You think that fake-PAE has been counter-productive, that it has done more harm than good. Maybe you are right, maybe not. I still think it was right to offer it as a solution to users, who would otherwise not use these computers with modern Ubuntu based versions (because I thought that the decision was not going to be changed). However, I'm hoping it will change now, that there will be Trusty kernels, that can be booted and upgraded with Pentium M amd Celeron M. I can understand that you and many other people do not trust minor distros or the organisations behind them or community re-spins. But who can we trust? I think the [big] companies are at least as likely to create and hide back-doors for themselves or some national intelligence service organisation. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
I'm reprinting what I wrote in comment #105 because it is still so very
easy to install PAE, though it does require a little effort.
1) Download ISO of ubuntu flavor you wish to use, for example, xubuntu. I wil
use the name xubuntu.iso, for convenience.
2) partition and format USB stick, in this example, /dev/sdb and /dev/sdb1. The
USBStick has to be larger then the iso. Use mkvfat for formatting of /dev/sdb1.
3) Eject and insert the USB to have the automounter mount the USB drive. Make
note of the location.
4) Use grub to install grub to the USB stick
grub-install --no-floppy --root-directory=/media/ubuntu/2341-af31/
(obviously this will have to match the mounted path)
5) grub-mkconfig /meda/ubuntu/2341-af31/boot/grub/grub.cfg
Open grub.cfg in your favorite editor and remove all the menuentry
sections to replace it with the following.
menuentry Xubuntu (32bit) {
iso_path=/xubuntu-13.10-dvd-i386.iso
export iso_path
search --set --file $iso_path
loopback loop $iso_path
root=(loop)
configfile /grub/loopback.cfg
loopback --delete loop
}
Save, unmount and reboot from the USB stick.
What will happen is, the USB stick will be booted as usual by grub, grub
will then do a loopback mount of the iso, as is (so no modification to
it required). The beauty of this all is, you can add MORE iso's and just
add menu entries for them. So xubuntu 32bit, 64bit, gnomebuntu, you name
it, you can add it. The only requirement is that the iso does actually
support grub booting (e.g. has the /grub/loopback.cfg). Not all iso's
have this!
After the installer has finished, it is required however to install
fake-pae to make updates function properly, so to that extend, this
bugreport is still relevant.
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Title:
Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M
x86 Laptop due to bug in PAE kernel, initramfs or syslinux
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[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
please let`s stop discussion as any further discussion does not add anything valuable to the solution. i think 272 comments (=thousands of lines of text) is enough discussion for a problem which can be entirely fixed for everyone by some kernel developer adding 22 lines of code to the linux kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
There's a new pair of patches: https://lkml.org/lkml/2014/2/28/258 and https://lkml.org/lkml/2014/2/26/394 It's a small patch but test reports to LKML are still welcome (you don't have to be subscribed to the list to respond, just use the correct subject line). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
good news, thanks ! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
+1 (good news, thanks) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
dear ubuntu kernel team, please consider adding the patch from https://lkml.org/lkml/2014/2/26/192 to the ubuntu kernel, so the pae issue will be fixed with 14.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
I am not a dev, not a skilled programmer, but only a loyal and satisfied ubuntu user since I switched from Suse to Dapper Drake 6.06 on my deprecated Pentium M. This old and poor notebook have seen also Windows XP, Windows Vista and now it can also run Windows 7 with not much pretends. I decided to give him new life upgrading from 11.10 and make Xubuntu 13.10 the only OS installed in my notebook and guess what?? I cannot install it. Why?? PAE Kernel!! I had to install 12.04, install fake-pae and the make 3 (THREE) dist upgrades! (after days of research) The system goes smooth and fast as it has never been, so what's the problem of adding those few lines of code in linux kernel? Why force users that have a PAE capable cpu (unlikely not advertised) to make tricks and 3-4-5 etc distribution upgrades just to be able to install the latest distribution that could also run with no problems at all? I understand that old hardware cannot been supported forever...but this is not the case for Pentium M. Should I have stayed with Windows 7 or even XP? This will be the scenario the first time I will be in need of formatting my notebook (don't have the will/the time to make 4-5-... dist upgrade from 12.04 everytime). I really thanks all the devs, but the decision to drop off pae without thinking about consequencies, is a little bit stupid. I decided to write this comment just to point out that LIKE ME, there are thousands (not hundreds) of desktop users like me that decided to return to run Windows on their systems after that decision and they didn't come to launchpad to make you know. Just search Ubuntu non PAE on google... @Roland Thanks for your efforts! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Luke, thanks for letting us know and for the credits. What you write is exactly the reason why i spent my free time on help fixing this and it`s also the reason, why i was constantly nagging here - and why i was (or still am, as it`s not fixed yet) very dissapointed, too. I hope that ubuntu will put the fix in very soon, as release date for 14.04 is just some weeks ahead -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Thanks again Roland for spending your time into this...I read the mails on LKML, and since I don't know how it works (I am only a simple user) I am asking...have we got more chances now to see this problem fixed somewhere in the future or am I hoping for something that could never arrive? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
'...Why?? PAE Kernel!! I had to install 12.04, install fake-pae and the make 3 (THREE) dist upgrades! (after days of research). Why force users that have a PAE capable cpu (unlikely not advertised) to make tricks and 3-4-5 etc distribution upgrades just to be able to install the latest distribution that could also run with no problems at all? ...' If you had searched a little bit more, or asked at the Ubuntu Forums, maybe you had found https://help.ubuntu.com/community/Lubuntu-fake-PAE and you had been able to install Lubuntu 13.10 directly without all those upgrading steps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
I know about lubuntu fake pae, and upgrading from 12.04 is one of the options. By the way, this is not the point.. And what about if someone needs Xubuntu or something else running out of the box? And when 14.04 will be released, there will be a lubuntu fake pae version? These are all workarounds with advantages and disadvantages, while the problem could be easily fixed by forcing Pae flag on Pentium M. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
All the main Ubuntu flavours of version 13.10 are available as tarballs to be installed with the One Button Installer, ubuntuforums.org/showthread.php?t=2172971 and this works with Pentium M and Celeron M CPUs. Experimental Trusty tarballs are already uploaded, http://ubuntuforums.org/showthread.php?t=2172971p=12931564#post12931564 There are community efforts to make a non-pae kernel for Trusty Tahr. See this link http://ubuntuforums.org/showthread.php?t=2172971p=12940628#post12940628 -o- But the code snipped published by Chris Bainbridge (in comment #260) makes me hope that we will soon get a main-stream ubuntu kernel that will include Pentium M and Celeron M CPUs, so that we can focus our community efforts on other problems. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
i read experimental in those links - and i think there are people who dislike installing their operating system in a re-packaged way from a community based, untrusted source. nothing against you, nio, you appear trustworthy - but i`m one of those. if all the community efforts had been put into the kernel fix instead of fake pae or building alternative installation methods , then we would not sit here and discuss. it may be a logical step, that these workaround exist, but it`s always better to adress the root cause instead of tempering with a symptom. it was good work to provide those workarounds, but it would be even better work to integrate the kernel fix from upstream now and help bugging the ubuntu devs to do so. while writing this, i bet the kernel based fix had probably alrady being done if the community workarounds never existed, because while they existed the ubuntu devs could lean back and tell the user: Pentium M? naah, that`s old, watch out for fake-pae and alternative installer disks as a workaround. that probably HELPED a LOT of users but it did not help fixing the root cause, because many users never needed to complain because of that. linux people like tinkering...oh yes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
LKML thread: https://lkml.org/lkml/2014/2/25/18 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
May be one-hundred-papercuts is the right place if you feel a bug doesn't get enough attention foralongtime. kernel specific bugs are excluded - see https://wiki.ubuntu.com/One%20Hundred%20Papercuts/Papercuts -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
** Changed in: syslinux (Ubuntu) Status: Invalid = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
** Tags added: trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
hi there! reverted bug-status back to confirmed. There are other bug-statii like opinion, incomplete, fix released, fix commited Non of these reflect the situation, neither. The bug-report is valid since a lot of users have confirmed it's existance. May be one-hundred-papercuts is the right place if you feel a bug doesn't get enough attention foralongtime. Another valuable thought is that one cannot blame the ubuntu-people solely for not getting this right - Intel should include the regarded little Pentium-M-boxes in the package 'intel-microcode' - probabely they'll lend us an open ear with the forthcoming end of W$ XP. BUT they won't take any action w/o a valuable bug-report. @ roland aus koeln: Keep in mind: a bug report disappears from list once it's marked as invalid. But is also appears in trusty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
May be one-hundred-papercuts is the right place if you feel a bug doesn't get enough attention foralongtime. that`s a pointer, thanks. Another valuable thought is that one cannot blame the ubuntu-people solely for not getting this right yes, for sure intel also is to blame, but when the ubuntu team decided to drop non-pae kernel ( http://ubuntu.5.x6.nabble.com/Dropping-i386 -non-PAE-as-a-supported-kernel-flavour-in-Precise-Pangolin-td366373.html ) they should better care for the consequences instead of ignoring the problems of hundreds of users. and , they cannot say that nobody complained - there had been complaints already at time of the announcement. i would have no problem when ubuntu was simply ubuntu desktop, but there is ubuntu server, there is ltsp, there is lubuntu and there is xubuntu, and these are all suitable or even meant for old hardware. hardware you cannot use with these ubuntu derivates anymore. and there are many more ubuntu based distros - get a clue at: http://distrowatch.com/search.php?basedon=Ubuntu so, deciding to drop non-pae ubuntu team also decided killing old hardware, as users are more likely to switch to new hardware than switching to a distro like debian. @ roland aus koeln: Keep in mind: a bug report disappears from list once it's marked as invalid. But is also appears in trusty i neither maintain this bug nor can i remember touching this bug`s status information, i´m not even sure if i can change a bug`s status at all. what i really no not understand is why adding my rather non-intrusive patch to the ubuntu kernel as a workaround to the drop-non- pae-decision is such a no-go and why kernel devs telling they would probably have a look and probably make a better version of it and then i never ever get any response again. to me this looks like they neither put attention on this issue nor do they appreciate/esteem work/fixes from the user community, as the work i put into this is for nothing and just a waste of time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
bugticket closed, as ubuntu team is ignorant and will not fix this. sad but true. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Roland, Thanks for trying. In 2012 an Ubuntu developer made a private version of 12.04 with PAE support, so I am still using Ubuntu with my old laptop. The Ubuntu team has people who could fix this the right way, but as you said, they are lazy. Stan On Wed, February 12, 2014 4:39 pm, roland aus köln wrote: bugticket closed, as ubuntu team is ignorant and will not fix this. sad but true. -- You received this bug notification because you are subscribed to a duplicate bug report (993939). https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux Status in âlinuxâ package in Ubuntu: Confirmed Status in âsyslinuxâ package in Ubuntu: Invalid Status in Baltix GNU/Linux: Triaged Bug description: Ubuntu 12.04 doesn't start from Desktop CD or USB with syslinux boot loader on Pentium M 1.6Ghz or faster Pentium M CPU - displays error message about missing PAE feature in CPU, but *the same* *Ubuntu 12.04* Desktop CD/LiveUSB starts fine on *the same CPU* (and same PAE kernel) if GRUB boot loader is used, for example when WUBI or LiveUSB with GRUB boot loader, like Multisystem (http://liveusb.info/dotclear/index.php?pages/install ) is used! The error message is: This kernel requires the following features not present on the CPU: pae. Unable to boot - please use a kernel appropriate for you CPU. THIS IS AN IMPORTANT REGRESSION! People are able to install and successfully use Ubuntu 12.04 on such pretty new hardware, like IBM Thinkpad T42 laptop with Pentium M 1700Mhz processor, but the bug in syslinux (or something related) forbids Ubuntu 12.04 installation. This bug is reproducible on lots of computers, there are several log files and /proc/cpuinfo file attached to this bugreport, AFAIK it's enough to reopen this bug. --- ApportVersion: 1.23-0ubuntu4 Architecture: i386 CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied MachineType: IBM 2373PPU dmi.bios.date: 06/18/2007 dmi.bios.vendor: IBM dmi.bios.version: 1RETDRWW (3.23 ) dmi.board.name: 2373PPU dmi.board.vendor: IBM dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: IBM dmi.chassis.version: Not Available dmi.modalias: dmi:bvnIBM:bvr1RETDRWW(3.23):bd06/18/2007:svnIBM:pn2373PPU:pvrThinkPadT42:rvnIBM:rn2373PPU:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable: dmi.product.name: 2373PPU dmi.product.version: ThinkPad T42 dmi.sys.vendor: IBM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
they are probably putting the focus on the wrong things and/or are understaffed. i will not use ubuntu anymore because of this, because ubuntu does not satisfy my expectation of a healty user and developer community. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Ubuntu is more and more microsoft-like : What is good for UBUNTU/Window is good for customers, no matter what they say. This is the main problem of hegemonic situations. By the way, LxLe hich is based on Lubuntu, runs perfectly from an Usb key on these old laptops. And it is light enough (not like the latest Ubuntu versions) to run fluidly and quickly -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
more than one and a half months gone by and nothing happened. 14.04 will be out soon, and i swear it will still have that pentium M issue. i don`t know what you 101 guys will do, but i have one task on my todo: wiping all computers in our fablab and replacing lubuntu with a linux distro w/o planned obsolescence inside. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
No further progress ? ubuntu/lubuntu/xubunto 14.04 co will soon get off the starting blocks - i heard it will also be a LTS. And all of those still being shipped with a known problem affecting thousands of users ? Please, Ubuntu team put an hour effort into this, this would save much hassle and thousands of workaround-hours for your user community ! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
It's also interesting for Ubuntu Kylin: https://wiki.ubuntu.com/Ubuntu%20Kylin/1404-alpha-1-ReleaseNote#System_Requirements ;-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
adding to the list: Intel(R) Celeron(R) M processor 1400MHz 0695 0812 A7E9F9BF Intel(R) Celeron(R) M processor 1400Mhz 06D6 0812 AFE9F9BF Intel(R) Celeron(R) M processor 1500MHz 0695 0812 A7E9F9BF Intel(R) Pentium(R) M processor 1300MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1400MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1500MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1600MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1600MHz 06D6 0816 0180 AFE9FBBF Intel(R) Pentium(R) M processor 1700MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 1800MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 2000MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 2100Mhz 06D6 0816 0180 AFE9F9BF ubuntu team - are, are you watching bugticket ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Roland, 1. Thanks for keeping this issue alive :-) 2. We have evidence that these two CPUs also have PAE capability but no PAE flag: Celeron M 1200 Mhz 0001 0695 0812 a7e9f9bf Celeron M 1300 MHz 0001 0695 0812 a7e9f9bf Best regards Nio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
So here we go Intel(R) Celeron(R) M processor 1200Mhz 0695 0812 A7E9F9BF Intel(R) Celeron(R) M processor 1300MHz 0695 0812 A7E9F9BF Intel(R) Celeron(R) M processor 1400MHz 0695 0812 A7E9F9BF Intel(R) Celeron(R) M processor 1400Mhz 06D6 0812 AFE9F9BF Intel(R) Celeron(R) M processor 1500MHz 0695 0812 A7E9F9BF Intel(R) Pentium(R) M processor 1300MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1400MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1500MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1600MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1600MHz 06D6 0816 0180 AFE9FBBF Intel(R) Pentium(R) M processor 1700MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 1800MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 2000MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 2100Mhz 06D6 0816 0180 AFE9F9BF -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Here is my full cpuinfo, Pentium-M 2.1 GHz not having the PAE flag, happily running a PAE kernel. processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 13 model name : Intel(R) Pentium(R) M processor 2.10GHz stepping: 6 microcode : 0x18 cpu MHz : 2100.000 cache size : 2048 KB fdiv_bug: no hlt_bug : no f00f_bug: no coma_bug: no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov clflush dts acpi mmx fxsr sse sse2 ss tm pbe bts est tm2 bogomips: 4186.17 clflush size: 64 cache_alignment : 64 address sizes : 36 bits physical, 32 bits virtual power management: -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Hi Oliver, That is the fastest Pentium M without a PAE flag reported yet in this project :-) Please post also the short output of the following command line, cpuid|grep ^0001 Best regards Nio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
So that's where those lines are from. 0001 06d6 0816 0180 afe9f9bf And yeah, I bought the fastest CPU at the time that would fit in this laptop. I think the faster cores in the same series are all 133 MHz FSB and actually do report PAE if I'm not mistaken, only the 100 MHz parts such as this where wrong. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
I think so too [that the faster ones with 133 MHz FSB (533 MHz transfer rate) actually do report PAE]. Thank you for that cpuid line! I'll upload it into the list at https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
is your cpu on the list above (see 5 posts before) ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
With Ubuntu 13.10 it has become a mess. I tried to install it 4 times on my notebook now. It would go through the complete installation process and only at the end suddenly the kernel failed to install. I thought I may have connectivity problems at first. Only after manually doing a dpkg -i on the kernel deb through a root shell, I saw the error message about non-PAE. I hope at least some warning can be added about this, because it's stupid to go through the whole process and discover at the end it's not going to work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
it`s based on information from cpu-world.com, they have a large real world cpuid database (user submitted data). it`s ineed not tested, but based on the infos at https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test i would logically assume, that all of these behave identically. they all have no PAE flag shown and are the only non pre-dinosaur-age cpu`s missing that feature. i`m curious about the 1,2 ghz one listed, as this is not in the database at all. oh, and i see there is one of the 1600Mhz Pentium M with AFE9FBBF, so this one could fail to work, too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Not seeing my 2100 MHz Pentium-M (100 MHz FSB f i'm not mistaken) I'll try to run the test sometime soon. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
hopefully, this should (hopefully) be a comprehensive list of all affected CPU`s: Intel(R) Celeron(R) M processor 1400MHz 0695 0812 A7E9F9BF Intel(R) Celeron(R) M processor 1400Mhz 06D6 0812 AFE9F9BF Intel(R) Celeron(R) M processor 1500MHz 0695 0812 A7E9F9BF Intel(R) Pentium(R) M processor 1300MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1400MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1500MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1600MHz 0695 0816 0180 A7E9F9BF Intel(R) Pentium(R) M processor 1600MHz 06D6 0816 0180 AFE9FBBF Intel(R) Pentium(R) M processor 1700MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 1800MHz 06D6 0816 0180 AFE9F9BF Intel(R) Pentium(R) M processor 2000MHz 06D6 0816 0180 AFE9F9BF the numbers after the cpu type are CPUID _0001 (like on https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test ) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Hi Roland, Nice list :-) How did you compile it? Are all those CPUs tested, or are you adding some of the CPUs versions via logical conclusions? Best regards Nio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
For clarity the error referred to in this bug is emitted by the kernel from its 16bit entry point. The same check is not made when booted via its 32bit entry point. This is arguably a bug, the kernel should check and refuse to run when required features are not present. In this case the main issue is that some PAE capable CPUs do not correctly list this in their CPUID capability bits. The logical fix is to fake the PAE bit for those cpus, through a whitelist. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New = Confirmed ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Changed in: syslinux (Ubuntu) Status: Confirmed = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
There is a start for such a whitelist in comment #203 :-) If *you* have a Celeron M or Pentium M different from those in that list, please supply your result of the PAE test described in https://help.ubuntu.com/community/Lubuntu-fake-PAE -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
here is amore comprehensive database containing cpuid information. http://www.cpu-world.com/cgi-bin/CPUID.pl?s=21 unfortunately i have no clue how to make a whitelist from that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
On 29 November 2013 16:22, Andy Whitcroft a...@canonical.com wrote: For clarity the error referred to in this bug is emitted by the kernel from its 16bit entry point. The same check is not made when booted via its 32bit entry point. This is arguably a bug, the kernel should check and refuse to run when required features are not present. In this case the main issue is that some PAE capable CPUs do not correctly list this in their CPUID capability bits. The logical fix is to fake the PAE bit for those cpus, through a whitelist. A whitelist of some CPUIDs is collected here: https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test (first table). There might be more. Regards, Dmitrijs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
It seems, that Roland's (devzero-c) patch should be improved - see this email from kernel developer HPA: H. Peter Anvin h...@zytor.com wrote: The right way to do this is to have the option, if it is found, simply set the bit in the CPU array. However, it is important to verify that we are on the affected type of CPU, specifically the affected Pentium Ms. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
i don`t have the skills for this and i don`t understand, why hpa forwarded discussion to lkml at this early stage, as it is a patch primary meant for the ubuntu kernel to adress an ubuntu specific problem. sure it is not perfect and not the optimal way to proceed, but it is a solution to a problem. we wouldn`t have this problem and we wouldn`t have this patch if there wasn`t the discision to drop support for non-pae kernels. so hopefully the ubuntu kernel maintainers will give a comment on this patch or pick it up to make a version which fulfils kernel code- quality/style or patch-submission requirements. this patch is rather unintrusive and it easily solves a problem for many users. i spend many hours on debugging this issue and developing this patch, so for now please understand that i`m done with it. lkml reference: http://marc.info/?l=linux-kernelm=138550884425543w=2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
2013-11-27 11:24, Mantas Kriaučiūnas skrev: It seems, that Roland's (devzero-c) patch should be improved - see this email from kernel developer HPA: H. Peter Anvin h...@zytor.com wrote: The right way to do this is to have the option, if it is found, simply set the bit in the CPU array. However, it is important to verify that we are on the affected type of CPU, specifically the affected Pentium Ms. I would like to add Celeron M 'the affected Celeron M and Pentium M CPUs' See for example this link https://help.ubuntu.com/community/Lubuntu-fake-PAE#Test -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
On 27 November 2013 10:42, roland aus köln devz...@web.de wrote: i don`t have the skills for this and i don`t understand, why hpa forwarded discussion to lkml at this early stage, as it is a patch primary meant for the ubuntu kernel to adress an ubuntu specific problem. I understand your concern. The fact that certain CPUs are buggy and do not declare PAE capability is a hardware bug which cannot be rectified and if quirks are needed on the kernel side, the right way is to essentially white-list / set PAE options of the affected CPUs. ubuntu kernels do not typically apply original patches, mostly only cherrypicks from upstream trees/vendors. sure it is not perfect and not the optimal way to proceed, but it is a solution to a problem. we wouldn`t have this problem and we wouldn`t have this patch if there wasn`t the discision to drop support for non-pae kernels. so hopefully the ubuntu kernel maintainers will give a comment on this patch or pick it up to make a version which fulfils kernel code- quality/style or patch-submission requirements. this patch is rather unintrusive and it easily solves a problem for many users. i spend many hours on debugging this issue and developing this patch, so for now please understand that i`m done with it. lkml reference: http://marc.info/?l=linux-kernelm=138550884425543w=2 I understand your concerns, and I'll talk to kernel team, to see if we can get this properly worked out and upstreamed. Regards, Dmitrijs. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Actually the problem is not Ubuntu specific as Debian also includes a pae flags check in the 686 kernel package. Having a detection patch in the upstream kernel would also fix the bug in Debian, and would be better for users than having to manually alter the kernel command line. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
as Debian also includes a pae flags check in the 686 kernel package the pae flags check is in the x86 bootcode of the kernel and apparently it depends on the bootloader if it`s being executed or not. only grub2 seems to skips that code which does vga initialization, cpu- checking and other steps like edd ( https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/boot/edd.c?id=e479c8306f898fcdb9b36179071eae6338a17364 ) , which makes all the work pretty pointless. i wonder, why skipping that code is possible at all and nobody complains (besides that silent complain of hpa) for details, see https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/x86/boot/main.c (end of the file) and https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/x86/boot/cpu.c and https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/x86/boot/cpucheck.c btw - thanks Dimitrijs for the positive response. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
as Debian also includes a pae flags check in the 686 kernel package the pae flags check is in the x86 bootcode of the kernel and apparently it depends on the bootloader if it`s being executed or not. I meant the check in the linux-image-* package preinst, the check prevents the package from being installed on systems where pae is not in cpu flags. I thought that Debian had the same check, but in fact it doesn't now - either I remembered incorrectly or the check was removed at some point. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
I've been tinkering around a little bit this evening
To: kernel-t...@lists.ubuntu.com
Cc: H. Peter Anvin h...@zytor.com
Subject: [PATCH] - add fixpae bootparam to fix/workaround #930447
Hello kernel-team,
regarding https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447
, i have developed a simple patch to (hopefully) provide an easy and
elegant workaround/fix for the issue. I assume some hundred users (if
not some thousand, as entries in bugreports are only the tip of an
iceberg) are affected by this issue.
Please take a review and feel free to merge.
As defaulting to PAE kernels is specific for some distros only, i think
this is no patch for mainline (yet).
I did not often do patches, nor am i a good programmer - so sorry if the
patch or the submission style is not perfect.
regards
Roland
---
This patch adds a kernel bootparam fixpae. If integrated into the kernel,
this should make life more easy, as installation quirks like fake-pae package,
upgrade path from ubuntu 12.04 onwards or specially crafted installation media
are not needed anymore. Affected users also get a hint that their issue may be
workarounded with this param. Just add the bootparam to the kernel commandline
and you`re done.
fixpae [x86] Workaround for a nasty PAE issue with older CPU`s
like Pentium M, as they may report PAE incapability
although they support it. This bootparam adds a fake
pae entry to the flags section in /proc/cpuinfo and
skips the validate_cpu() routine in arch/x86/boot/main.c
This is necesssary as major distros nowadays only ship
PAE Kernels for x86 and there is no easy workaround.
signed-off-by: Roland Kletzing devz...@web.de
---
diff -uprN linux-source-3.11.0.orig/arch/x86/boot/main.c
linux-source-3.11.0/arch/x86/boot/main.c
--- linux-source-3.11.0.orig/arch/x86/boot/main.c 2013-09-02
22:46:10.0 +0200
+++ linux-source-3.11.0/arch/x86/boot/main.c2013-11-26 20:56:01.175269235
+0100
@@ -146,9 +146,17 @@ void main(void)
/* Make sure we have all the proper CPU support */
if (validate_cpu()) {
- puts(Unable to boot - please use a kernel appropriate
-for your CPU.\n);
- die();
+ if(cmdline_find_option_bool(fixpae))
+ puts(fixpae bootparam active. Skipping CPU
+validation and continuing Kernel execution\n);
+ else {
+ puts(Unable to boot - please use a kernel appropriate
+for your CPU.\n
+Hint: CPU`s like Pentium M may incorrectly report
+on PAE incapability, so you may try booting with
+fixpae bootparam as a workaround.\n);
+ die();
+ }
}
/* Tell the BIOS what CPU mode we intend to run in. */
diff -uprN linux-source-3.11.0.orig/arch/x86/kernel/cpu/proc.c
linux-source-3.11.0/arch/x86/kernel/cpu/proc.c
--- linux-source-3.11.0.orig/arch/x86/kernel/cpu/proc.c 2013-09-02
22:46:10.0 +0200
+++ linux-source-3.11.0/arch/x86/kernel/cpu/proc.c 2013-11-26
21:15:53.961267903 +0100
@@ -4,6 +4,17 @@
#include linux/seq_file.h
#include linux/cpufreq.h
+/* fixpae kernelparam workaround, see kernel-parameters.txt */
+static int fixpaeflag = 0;
+
+static int __init fixpae(char *s)
+{
+ fixpaeflag=1;
+return 1;
+}
+
+__setup(fixpae, fixpae);
+
/*
* Get CPU information for use by the procfs.
*/
@@ -96,6 +107,8 @@ static int show_cpuinfo(struct seq_file
show_cpuinfo_misc(m, c);
seq_printf(m, flags\t\t:);
+ if(fixpaeflag)
+ seq_printf(m, pae);
for (i = 0; i 32*NCAPINTS; i++)
if (cpu_has(c, i) x86_cap_flags[i] != NULL)
seq_printf(m, %s, x86_cap_flags[i]);
diff -uprN linux-source-3.11.0.orig/Documentation/kernel-parameters.txt
linux-source-3.11.0/Documentation/kernel-parameters.txt
--- linux-source-3.11.0.orig/Documentation/kernel-parameters.txt
2013-10-23 19:26:00.0 +0200
+++ linux-source-3.11.0/Documentation/kernel-parameters.txt 2013-11-26
21:13:28.515313678 +0100
@@ -900,6 +900,14 @@ bytes respectively. Such letter suffixes
Format: interval,probability,space,times
See also Documentation/fault-injection/.
+ fixpae [x86] Workaround for a nasty PAE issue with older CPU`s
+ like Pentium M, as they may report PAE incapability
+ although they support it. This bootparam adds a fake
+ pae entry to the flags section in /proc/cpuinfo and
+ skips the validate_cpu() routine in arch/x86/boot/main.c
+ This
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Great job Roland :-) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
reference for grub mailinglist discussion (unfortunately, neither lkml nor grub-ml post had been commented yet): http://lists.gnu.org/archive/html/help-grub/2013-11/msg00031.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
i did a comparison of the installer`s kernel .config with the kernel .config of my working system - and they appear nearly identical: 3c3 # Linux/i386 3.11.0-12-generic Kernel Configuration --- # Linux/i386 3.11.0-13-generic Kernel Configuration 68c68 CONFIG_VERSION_SIGNATURE=Ubuntu 3.11.0-12.19-generic 3.11.3 --- CONFIG_VERSION_SIGNATURE=Ubuntu 3.11.0-13.20-generic 3.11.6 5435c5435 CONFIG_USB_OTG=y --- # CONFIG_USB_OTG is not set 5703d5702 CONFIG_USB_ZERO_HNPTEST=y 6717a6717 CONFIG_DM_RAID45=m so i would confirm the suspicion that the problem must be related to the bootloader somehow. but the question is if syslinux makes the kernel fail boot or if grub has something inside which avoids the kernel fail to boot. if PAE cpu flag is not available in some processor`s CPUID, i wonder why the kernel can boot. does linux kernel not check for cpu flags and does it detect pae capability differently (i.e. more reliable?) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
i have copied the installer disks kernel and initrd to my working system and it (indeed) boots via grub. so it`s either syslinux which makes it fail boot or grub has something alongside wich makes it work magically (as the kernel checks for PAE i wonder, why it boots at all) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
On 2013-11-24 11:13, roland aus köln wrote: i did a comparison of the installer`s kernel .config with the kernel .config of my working system - and they appear nearly identical: 3c3 # Linux/i386 3.11.0-12-generic Kernel Configuration --- # Linux/i386 3.11.0-13-generic Kernel Configuration 68c68 CONFIG_VERSION_SIGNATURE=Ubuntu 3.11.0-12.19-generic 3.11.3 --- CONFIG_VERSION_SIGNATURE=Ubuntu 3.11.0-13.20-generic 3.11.6 5435c5435 CONFIG_USB_OTG=y --- # CONFIG_USB_OTG is not set 5703d5702 CONFIG_USB_ZERO_HNPTEST=y 6717a6717 CONFIG_DM_RAID45=m so i would confirm the suspicion that the problem must be related to the bootloader somehow. but the question is if syslinux makes the kernel fail boot or if grub has something inside which avoids the kernel fail to boot. if PAE cpu flag is not available in some processor`s CPUID, i wonder why the kernel can boot. does linux kernel not check for cpu flags and does it detect pae capability differently (i.e. more reliable?) The flag is only an indicator, that is used by other programs to decide what to do. Most Celeron M and Pentium M computers have PAE capability, at least they can manage to run PAE kernels without problems. But there is no PAE flag. There are at least two checks, - in syslinux that prevents installation if there is no PAE flag - in the system for upgrading, that prevents upgrading to a new kernel. I guess more precisely it prevents upgrading to a PAE kernel, if there is no PAE flag. But there is no check in grub, so that way we can boot the kernel. -o- If you have the time and insight to fix these issues, we are many people who would be happy :-) Best regards Nio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
syslinux CAN check if there is PAE, but it looks that ubuntu makes no use of that. the message comes from the linux kernel, so the kernel checks for PAE and does not find PAE. this is somewhat expected, when the cpu lies about it. but the question is, why booting via grub makes things work. so i`m not sure if syslinux is to blame. think we need to find out how pae detection in linux kernel works and why it passes when booted via grub i found that ubuntu is using an older syslinux version, so i made a bootable usb-stick with a recent syslinux version and directly booted via syslinux.cfg: DEFAULT test LABEL test KERNEL /casper/vmlinuz APPEND initrd=/casper/initrd.lz but the problem remains: SYSLINUX 6.02 EDD 2013-10-13 Copyright (C) 1994-2013 H. Peter Anvin et al Loading /casper/vmlinuz... ok Loading /casper/initrd.lz... ok This kernel requires the following features not present on the CPU: pae Unable to boot - please use a kernel appropriate for your CPU. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
one interesting finding: i tried grub4dos (0.95) to boot /casper/vmlinuz+initrd.lz from USB and it also does NOT boot , but also bails out with the missing pae message. so, apparently it`s NOT a syslinux triggered problem. maybe this has something to do with realmode ? think we need to find out why normal grub _does_ work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
On 2013-11-24 14:54, roland aus köln wrote: one interesting finding: i tried grub4dos (0.95) to boot /casper/vmlinuz+initrd.lz from USB and it also does NOT boot , but also bails out with the missing pae message. so, apparently it`s NOT a syslinux triggered problem. maybe this has something to do with realmode ? think we need to find out why normal grub _does_ work. This is getting really interesting. My old 'truth', that the first problem is in syslinux is proven false :-D -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
interesting - yes :) please everybody excuse my harsh words in a previous comment. this is a really obscure issue -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
so here we go: i had some very short conversation with hpa (thank you for that valuable input!) and he is telling, that grub2 bypasses standard linux kernel initialization code . he thinks this is not good at all and wonders, what makes grub2 think it`s smart enough to do so. by piece of luck, grub2 circumvents the pae problem with cpu`s not correctly reporting it - and that made it possible to provide installation-quirks like being described on the ubuntu wiki. from my limited point of view, skipping standard initialization code from the linux kernel does not appear to be smart to me too, because it made finding the real problem so extremly difficult. i guess, if grub2 (and so the kernel) would just behave the standard way, maybe we already would have an appropriate quirk in the linux initialization code, or at least a hint that there are cpu`s which have pae but do not report about - and a kernel param to force skipping the pae check. you can easily verify that hpa is correct - just edit the grub commandline and replace linux /boot/vmlinzand initrd /boot/initrd... with linux16 /boot/vmlinuz... and initrd16 /boot/inititrd... and - voila, the problem also happens on bootable systems. i think this is stuff for being further discussed on linux-kernel and grub mailing lists... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
now i also understand, why setting vga textmodes on linux kernel does not work anymore with ubuntu. i have come to ubuntu very recently (i`t not the only distro i used) and always wondered about that: http://savannah.gnu.org/bugs/?34610 ** Bug watch added: GNU Savannah Bug Tracker #34610 http://savannah.gnu.org/bugs/?34610 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
reference for lkml discussion: http://marc.info/?l=linux-kernelm=138531102626148w=2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 930447] Re: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux
Now the snowball is rolling and it can take several directions. 1. The direction we want, that there will be bug-fixes, so that Celeron M and Pentium M CPUs will be accepted for PAE kernels from the very beginning of the installation :-) 2. A direction so that nothing happens to the Ubuntu code, maybe the most probable direction :-| 3. A direction I fear, that grub2 and/or the kernel module will close the loop-hole for fake-PAE. In that case we have to rely on flavours and respins built on Ubuntu 12.04 LTS lasting until April 2017, but without some modern features. Or tell the users to use another distro :-( I hope it will roll in a favourable direction. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930447 Title: Unable to start Ubuntu 12.04 live CD with syslinux loader on Pentium M x86 Laptop due to bug in PAE kernel, initramfs or syslinux To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/syslinux/+bug/930447/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
