Ubuntu
linux-lts-utopic package

  1. Bug #1487621
  2. Comment #5

Comment 5 for bug 1487621

Revision history for this message
Jeff Lane  (bladernr) wrote : 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).