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[Launchpad Bug Tracker <1024147@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1024147

Title:
  12.04 install cd freezes on mid-2012 13 inch MacBookPro

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  I have several mid-2012 13 inch MacBook Pros (MacBookPro9,2) and am
  trying to boot from the Ubuntu 12.04 desktop 64 bit install/live cd.

  All I see is a black screen with a blinking underline cursor in the
  top left corner.  I don't get the usual boot menu.  I never see
  "ISOLinux" on the screen.

  I have tried Ubuntu 11.04 (desktop 64bit) on the same computers, and
  then I do get to the boot menu.  Booting then results in a kernel
  panic, unless the noapic boot option is specified, in which case it
  appears to work normally.

  A colleague tried Ubuntu 10.04 on the same computers and found that it
  worked fine.

  Summary: On brand new MacBook Pros, 10.04 works, 11.04 works with
  noapic, and 12.04 freezes immediately prior to the boot menu.

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