← Back to team overview

kernel-packages team mailing list archive

[Bug 1487621] Re: Fails to boot on Macbook Air 2013 (Haswell)

 

OK, other than the dkms issues, 4.2.0 rc8 did install enough to boot
(just didn't have wifi), and it does boot in SMP mode:

bladernr@Bun-Bun:~$ uname -a
Linux Bun-Bun 4.2.0-040200rc8-generic #201508240030 SMP Mon Aug 24 04:31:40 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
bladernr@Bun-Bun:~$ cat /proc/cpuinfo |grep ocessor
processor	: 0
processor	: 1
processor	: 2
processor	: 3

so with 4.2.0 rc8, at least, I can boot in SMP mode, and all four CPUs
appear (two cores at 2 threads each).

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-lts-utopic in Ubuntu.
https://bugs.launchpad.net/bugs/1487621

Title:
  Fails to boot on Macbook Air 2013 (Haswell)

Status in linux-lts-utopic package in Ubuntu:
  New
Status in linux-lts-vivid package in Ubuntu:
  New

Bug description:
  I keep running into issues with booting on a 2013 Macbook Air.  After
  grub, the kernel and initrd load and the system then just hangs with a
  blinking cursor.

  Removing the "quiet" and "splash" options shows me that the kernel
  hangs bringing up SMP, just as in bug #1197451 which has been marked
  Fix Released already (some time ago, actually).

  I get exactly what was mentioned in the comments about SMP hanging and
  have had to manually inject nosmp into the boot command when I boot
  the machine.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-40-generic 3.16.0-40.54~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-40.54~14.04.1-generic 3.16.7-ckt11
  Uname: Linux 3.16.0-40-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.12
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Aug 21 17:17:40 2015
  InstallationDate: Installed on 2015-06-11 (71 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64+mac (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-lts-utopic/+bug/1487621/+subscriptions


References