** Changed in: linux (Ubuntu Saucy)
Status: Confirmed = Invalid
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Title:
newer kernels (3.10+) don't boot on MacBook Air 6.1
To manage
@Miek Gieben, What steps did you take to convert Ubuntu to EFI? Did
you just enable it in the BIOS or something else?
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Title:
newer kernels
I followed the steps listed on a Ubuntu page where you can convert your
grub install to an efi boot. I didn't change anything in the BIOS. Sorry,
don't have the URL at hand atm.
On 26 Aug 2013 13:55, Joseph Salisbury joseph.salisb...@canonical.com
wrote:
@Miek Gieben, What steps did you take to
this guide:
https://help.ubuntu.com/community/UEFI#Converting_Ubuntu_into_EFI_or_Legacy_mode
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Title:
newer kernels (3.10+) don't boot on
Converting Ubuntu to EFI boot fixes the problem! I can boot now. All
CPUs are detected and the forceata stuff is also not needed. Note the
function keys and touchpad still don't work (even with 3.11-rc6), but
that is a seperate bug
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This issue appears to be an upstream bug, since you tested the latest
upstream kernel and it still requires the nosmp option. Would it be
possible for you to open an upstream bug report[0]? That will allow the
upstream Developers to examine the issue as well, and may provide a
quicker resolution
Thanks, but this is already happened and this bug already links to it:
https://bugzilla.kernel.org/show_bug.cgi?id=60635
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Title:
newer kernels
Thanks for testing. It sounds like there are two bugs. It sounds like
the crash with nosmp,libata.force=noncq no longer happens with
v3.11-rc6? You are now only having an issue booting without the nosmp
option?
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Yes, that is correct. A successful boot with 3.11-rc6 requires nosmp.
(note I compiled this kernel myself, this is not the ppa-mainline
kernel)
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Can you also see if the latest Raring kernel also requires both
nosmp,libata.force=noncq, or just nosmp. It can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.8.13.7-raring/
We may want to re-focus this bug on the 3.11-rc6 kernel not being able
to boot without nosmp and
3.8.13.7-raring (only installed the linux-image .deb) hangs with 'smp',
but boots with 'nosmp'
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Title:
newer kernels (3.10+) don't boot on
Do you happen to know if there was an earlier kernel version that did
not require the nosmp option?
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Title:
newer kernels (3.10+) don't boot on
See: https://bugzilla.kernel.org/show_bug.cgi?id=60635#c7
Pasted here:
I did some additional testing:
Kernels from: http://kernel.ubuntu.com/~kernel-ppa/mainline/
Version smp nosmp
- -- ---
3.8.13 hang ?
3.7.10 hang ?
3.6.11 hang
https://bugs.launchpad.net/ubuntu/precise/+source/linux/+bug/1197451/comments/25
Booting 3.11-rc6 with this method works for me too, but still need:
nosmp
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I started a kernel bisect between v3.9 final and v3.10-rc1. The kernel
bisect will require testing of about 7-10 test kernels.
I built the first test kernel, up to the following commit:
73287a43cc79ca06629a88d1a199cd283f42456a
The test kernel can be downloaded from:
[ Quoting joseph.salisbury@canonica in [Bug 1213795] Re: newer kernels
(3 ]
I started a kernel bisect between v3.9 final and v3.10-rc1. The kernel
bisect will require testing of about 7-10 test kernels.
I built the first test kernel, up to the following commit:
** Tags added: regression-release
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Title:
newer kernels (3.10+) don't boot on MacBook Air 6.1
To manage notifications about this bug go to:
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.11 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
We can perform a kernel bisect if the v3.11-rc6 kernel does not boot as
well.
** Tags added: kernel-da-key saucy
** Also affects: linux (Ubuntu Saucy)
Importance: High
Status: Confirmed
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I tested v3.11-rc5 yesterday, that one didnt boot. I'll try the rc6
shortly.
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Title:
newer kernels (3.10+) don't boot on MacBook Air 6.1
To
rc6 does not boot, kernel crash with 'nosmp', kernel hang with 'smp'
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Title:
newer kernels (3.10+) don't boot on MacBook Air 6.1
To manage
I'd like to perform a bisect to figure out what commit caused this
regression. We need to identify the earliest kernel where the issue
started happening as well as the latest kernel that did not have this
issue.
Can you test the following kernels and report back? We are looking for
the first
Both kernels tested with 'nosmp' etc.
v3.9-saucy: boots
v3.10-rc1: crashes
Both won't boot with 'smp'
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Title:
newer kernels (3.10+) don't boot
Can you capture a digital image or screen capture of the failure your
seeing and post it to the bug.
It sounds like we are seeing two bugs here. First is the system won't
boot without smp. The second is that a regression was introduced in
v3.10-rc1 that prevents the system from booting even
Image of failed boot of v3.10-rc1
** Attachment added: IMG_20130819_125733.jpg
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213795/+attachment/3778418/+files/IMG_20130819_125733.jpg
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Ack.
To add some references, the first bug is:
https://bugzilla.kernel.org/show_bug.cgi?id=60635 and
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1197451.
** Bug watch added: Linux Kernel Bug Tracker #60635
http://bugzilla.kernel.org/show_bug.cgi?id=60635
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