Re: [lfs-support] Why does the udevadm settle command drive my video card crazy?
On Thu, 9 Feb 2017 17:31:36 + Hazel Russman wrote: > I've just completed LFS on my laptop, a Samsung machine with Vaio > electronics. The video card is a Vaio Chrome 9. > > I already knew that this card has compatibility issues. I had > problems after installing NuTyX, because the NuTyX initrd tried to > set up a framebuffer console which the card objected to. It went > black, then cycled slowly through the other available solid colours > (white, red, green...) until I rebooted. Thierry Nutt advised me to > blacklist the fb module and rebuild the kernel so as to bypass the > initrd, and this solved the problem. > > I didn't expect the same kind of trouble with lfs, but I got > identical symptoms during the startup process. The kernel booted > successfully and the init scripts started to run; then while the udev > script was running, everything went black. I checked the logs > afterwards and they showed that the initialisation had in fact run to > completion. It was only the video output that had failed. > > I edited some additional echo messages into the script and > established that it was the "udevadm settle" command that caused the > video problem. And when I blacklisted the fb module, the problem > disappeared. > > What is it about this command that affects my video card? > I'm replying to my own post just to tidy things up. It turns out that udevadm settle was a complete red herring. This command takes a long time to execute, so there's rather a high chance of something else happening coincidentally at the same time. The real cause of the problem was the kernel loading the viafb module followed by fbcon. It's fbcon that crashes the screen. If it is blacklisted, the boot completes normally. Actually it always completes normally according to the logs. It's just that you can't see it doing so with the screen misbehaving. In any case, the problem is purely with the Via Chrome graphics card and nothing to do with LFS. -- H Russman -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
Re: [lfs-support] How can I set hostname?
@Bruce, >Yes. For systemd, Section 7.2.3. >After bootup, use hostnamectl. > -- Bruce I didn't install systemd. I have installed sysvinit. @bucca, >try this as root: >echo hostname > /etc/hostname cat /etc/hostname = myhostname <-- it's already there @wiliam, >Hello, >https://www.gnu.org/software/coreutils/manual/html_node/hostname->invocation.html >You can use coreutils hostname program. >Sincerely, >William Harrington I tried with "hostname myhostname". Still root@(none) prompt there. -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
Re: [lfs-support] How can I set hostname?
On Mon, Feb 13, 2017 at 07:34:07AM +0600, ssmtpmailtesting ssmtpmailtesting wrote: > How is hostname set? I'm not using lfs-bootscripts. After login, I see > root@(none). Why is this? If I do sysctl kernel.hostname, it shows > can't open /proc/sys... no such file or directory. But /etc/hostname > has "myhostname". > > I want to set hostname manually. I don't want to use lfs-bootscript. Apart from what has already been said, you didn't tell us what you have managed to do (e.g. with init=/bin/bash you end up with a read-only root filesystem - I get the impression you have gone past that). So everybody is guessing. But to be honest, most of us don't want to debug your bootscripts, in the same way that most of us don't want to debug the details of why somebody else's build-scripts fail. Creating your own bootscripts may be a worthwhile approach (with the downside that you will then be on your own for everything you later need to start when you get to whichever other packages you want to run ;) but you might find it easiest to begin by working out what the individual LFS bootscripts do, and use them as guidance for things you want to do. From this initial question, I assume you have not mounted /proc. Some people think not mounting /proc is a valid choice, but I think it is a cause of pain. ĸen -- `I shall take my mountains', said Lu-Tze. `The climate will be good for them.' -- Small Gods -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
Re: [lfs-support] How can I set hostname?
On Tue, 14 Feb 2017 12:02:45 +0600 ssmtpmailtesting ssmtpmailtesting wrote: > I added: echo myhostname > /proc/sys/kernel/hostname > Still same prompt = root@(none) > But if I install lfs-bootscript, then it changes to root@myhostname. > I also added /etc/fstab and /etc/inittab > > Did I miss anything? AFAIK, bash (if you are running a different shell than bash, let us know) does get the hostname information from the kernel and that that can be set via writing to /proc/sys/kernel/hostname. An instance of bash also sets its variable $HOSTNAME to the hostname it found when it started up. However, do remember that already running instances of bash will need to be restarted *after* the system/kernel hostname is changed for them to see the new name. For example, as root in a bash prompt: echo testhost > /proc/sys/kernel/hostname exec /bin/bash export PS1="[\u@\h]: " should then yield a [root@testhost]: prompt. If not, what does your cat /proc/sys/kernel/hostname say? It should be testhost If you don't have a /proc/sys/kernel/hostname file on system startup, then the kernel may not have proc support and you will either have to enable that feature or set the host name using a utility that calls the sethostname() C-library system call (such as /bin/hostname, from inetutils, as William Harrington suggested). On Tue, 14 Feb 2017 13:16:12 +0100 Michele Bucca wrote: > try this as root: > echo hostname > /etc/hostname I think the startup scripts grab the host name from /etc/hostname, but he doesn't want to use any startup scripts. AFAIK, bash et al. does not look at /etc/hostname at all. Does anyone know if any common shell or application does look at /etc/hostname? If so, he will indeed have to set that one too. Mike -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
[lfs-support] LFS-8.0-rc1 is released
The Linux From Scratch community announces the release of LFS Version 8.0-rc1. It is a preliminary release of LFS-8.0. Major changes include toolchain updates to glibc-2.25 and and gcc-6.3.0. In total, 28 packages were updated since the last release. Changes to the text have also been made throughout the book. The Linux kernel has also been updated to version 4.9.9. This is a new major version of LFS. The change to 8.0 is due to the removal of the symbolic link from /lib to /lib64 and the complete removal of /usr/lib64. An additional feature is that the gold linker (/usr/bin/ld.gold) is now available although it is not the default linker. We encourage all users to read through this release of the book and test the instructions so that we can make the final release as good as possible. You can read the book online [0], or download [1] to read locally. In coordination with this release, a new version of LFS using the systemd package is also being released. This package implements the newer systemd style of system initialization and control and is consistent with LFS in most packages. You can read the systemd version of the book online [2], or download [3] to read locally. -- Bruce [0] http://www.linuxfromscratch.org/lfs/view/8.0-rc1/ [1] http://www.linuxfromscratch.org/lfs/downloads/8.0-rc1/ [2] http://www.linuxfromscratch.org/lfs/view/8.0-systemd-rc1/ [3] http://www.linuxfromscratch.org/lfs/downloads/8.0-systemd-rc1/ -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
Re: [lfs-support] How can I set hostname?
On Mon, February 13, 2017 01:34, ssmtpmailtesting ssmtpmailtesting wrote: > How is hostname set? I'm not using lfs-bootscripts. After login, I see > root@(none). Why is this? If I do sysctl kernel.hostname, it shows > can't open /proc/sys... no such file or directory. But /etc/hostname > has "myhostname". > > I want to set hostname manually. I don't want to use lfs-bootscript. Hello, https://www.gnu.org/software/coreutils/manual/html_node/hostname-invocation.html You can use coreutils hostname program. Sincerely, William Harrington -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
Re: [lfs-support] How can I set hostname?
2017-02-14 8:07 GMT+01:00 Bruce Dubbs : > ssmtpmailtesting ssmtpmailtesting wrote: >> >> I added: echo myhostname > /proc/sys/kernel/hostname >> Still same prompt = root@(none) >> But if I install lfs-bootscript, then it changes to root@myhostname. >> I also added /etc/fstab and /etc/inittab >> >> Did I miss anything? > > > Yes. For systemd, Section 7.2.3. > > After bootup, use hostnamectl. > > -- Bruce > > > try this as root: echo hostname > /etc/hostname > -- > http://lists.linuxfromscratch.org/listinfo/lfs-support > FAQ: http://www.linuxfromscratch.org/blfs/faq.html > Unsubscribe: See the above information page > > Do not top post on this list. > > A: Because it messes up the order in which people normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail? > > http://en.wikipedia.org/wiki/Posting_style -- http://lists.linuxfromscratch.org/listinfo/lfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page Do not top post on this list. A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? http://en.wikipedia.org/wiki/Posting_style
