[Bug 745960] Re: Cannot boot GRUB on Intel Mac after installing to LVM

[Steve Langasek]

Can anyone reproduce the originally reported issue with the 12.04 beta?
The developers have never been able to reproduce this; but there have
been improvements in the partition table handling in 12.04 that may have
fixed the bug along the way.

** Summary changed:

- Cannot boot GRUB after installing to LVM
+ Cannot boot GRUB on Intel Mac after installing to LVM

** Tags removed: rls-p-tracking

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https://bugs.launchpad.net/bugs/745960

Title:
  Cannot boot GRUB on Intel Mac after installing to LVM

Status in Release Notes for Ubuntu:
  New
Status in Release Notes for Ubuntu oneiric series:
  New
Status in Release Notes for Ubuntu precise series:
  New
Status in “grub2” package in Ubuntu:
  Incomplete
Status in “grub2” source package in Natty:
  Incomplete
Status in “grub2” source package in Oneiric:
  Incomplete
Status in “grub2” source package in Precise:
  Incomplete

Bug description:
  Binary package hint: debian-installer

  TEST CASE:
  http://testcases.qa.ubuntu.com/Install/AlternateEncryptedLvm

  I'm using kubuntu-alternate-amd64+mac.iso from 2011-03-29.1 on a
  MacBookPro6.2

  The installation runs as expected. No errors are reported. After
  rebooting, grub does not load. It's not that grub does not load linux,
  but rather that the hardware never passes control to the grub menu. It
  stays at the grey mac boot screen, as if there were no operating
  systems. Holding 'Alt' during boot, which is the standard way to boot
  when only Linux is installed on the Mac, offers no partition to boot.

  Installing the same system in the same manner without an encrypted LVM
  works fine. I did not test installing an unencrypted LVM.

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