kernel-packages team mailing list archive

[Xavier Gnata <xavier.gnata@xxxxxxxxx>]

Miek Gieben : Ok I have a dual boot mac OSX / ubuntu in legacy mode using rEFInd. Should I try to convert it to EFI like this : 
https://help.ubuntu.com/community/UEFI#Converting_Ubuntu_into_EFI_or_Legacy_mode or should a reset the mac back to factory settings and install ubuntu from scratch? I would like to keep the dual boot.

I have no experience with EFI.
Does the mac use secure boot?
It is possible/easy to install a new kernel without braking the EFI setup each time? 

I'm trying to figure out if the EFI mode has drawbacks compare to the legacy mode.
If there is no significant drawback then https://bugzilla.kernel.org/show_bug.cgi?id=60635 should be clsoed as "wontfix" or something like that.
What do you think?

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1197451

Title:
  Ubuntu fails to properly boot on Macbook Air 2013 6,1 & 6,2

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Triaged
Status in “linux” source package in Precise:
  Triaged
Status in “linux” source package in Quantal:
  Triaged
Status in “linux” source package in Raring:
  Triaged
Status in “linux” source package in Saucy:
  Triaged

Bug description:
  Ubuntu fails to properly boot on Macbook Air 2013 6,1

  Ubuntu fails to boot the 13.10 live image from usb without specifying
  acpi-off as a boot parameter.

  After installation is complete the boot process hangs at a purple
  screen. Booting into recovery mode shows that the process stops at the
  following:

  smpboot: Booting Node 0, #1

  I've tried 12.04.2, 13.04, and 13.10. I've also tried booting with
  kernel ver 3.9.8-030908-generic and the result is the same.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.10.0-2-generic 3.10.0-2.9
  ProcVersionSignature: Ubuntu 3.10.0-2.9-generic 3.10.0
  Uname: Linux 3.10.0-2-generic x86_64
  ApportVersion: 2.10.2-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     2885 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     2885 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  CasperVersion: 1.335
  Date: Wed Jul  3 15:31:42 2013
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64+mac (20130703)
  MachineType: Apple Inc. MacBookAir6,1
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: initrd=/casper/initrd.lz file=/cdrom/preseed/username.seed boot=casper  quiet splash acpi=off BOOT_IMAGE=/casper/vmlinuz
  RelatedPackageVersions:
   linux-restricted-modules-3.10.0-2-generic N/A
   linux-backports-modules-3.10.0-2-generic  N/A
   linux-firmware                            1.110
  RfKill:
   0: hci0: Bluetooth
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/24/2013
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBA61.88Z.0099.B00.1305241529
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-35C1E88140C3E6CF
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookAir6,1
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-35C1E88140C3E6CF
  dmi.modalias: dmi:bvnAppleInc.:bvrMBA61.88Z.0099.B00.1305241529:bd05/24/2013:svnAppleInc.:pnMacBookAir6,1:pvr1.0:rvnAppleInc.:rnMac-35C1E88140C3E6CF:rvrMacBookAir6,1:cvnAppleInc.:ct10:cvrMac-35C1E88140C3E6CF:
  dmi.product.name: MacBookAir6,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/1197451/+subscriptions