** 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
@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:
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
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:
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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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
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+)
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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** Tags added: regression-release
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Title:
newer kernels (3.10+) don't boot on MacBook Air 6.1
Status in The Linux Kernel:
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
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
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
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