[Bug 978464] Re: Upgrade 10.04 to 12.04 Beta 2 failed, grub issue

[Steve Langasek]

On Mon, May 07, 2012 at 05:41:43PM -0000, Phillip Susi wrote:
> Huh?  Whenever you upgrade grub the MBR is reinstalled.

This has never been the case because we don't believe we have a reliable
enough way to identify the correct device to write to.

> If that isn't happening, then that is the bug.

Regardless, this is not behavior that it's reasonable to change in an SRU. 
We need to fix the grub.cfg to be compatible with lucid grub.

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https://bugs.launchpad.net/bugs/978464

Title:
  Upgrade 10.04 to 12.04 Beta 2 failed, grub issue

Status in “grub2” package in Ubuntu:
  Triaged
Status in “grub2” source package in Precise:
  Triaged
Status in “grub2” source package in Quantal:
  Triaged

Bug description:
  I upgraded a 10.04 to 12.04 Beta 2.

  After the compulsory reboot, I ended up stuck on a GRUB shell.

  GRUB didn't get properly updated

  Screen shot is attached.

  I know how to pass that problem manually by upgrading grub
  configuration by hand using a LiveCD.. But obviously, for your lambda
  users it's going to be a massive blocker.

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