[Bug 949992] Re: Upgrade from Lucid to Precise results in broken grub configuration

[Brian Murray]

I haven't seen this before:

Setting up grub-pc (1.99-17ubuntu1) ...^M
Removing update-grub hooks from /etc/kernel-img.conf in favour of^M
/etc/kernel/ hooks.^M
Replacing config file /etc/default/grub with new version^M
Generating grub.cfg ...^M

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https://bugs.launchpad.net/bugs/949992

Title:
  Upgrade from Lucid to Precise results in broken grub configuration

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  Performed update-manager -d upgrade from lucid VM to precise. On
  completion, rebooted, and rather than Precise, I'm confronted with a

  grub>

  prompt.

  Attempted recovery by setting root and loading config, but get
  "unknown command hwmatch" when it tries to load the grub.cfg.

  Manually loading vmlinuz and initrd after setting root only gets me as
  far as a busybox prompt.

  Obviously I can't get to the point where I can run ubuntu-bug in that
  VM, so my ability to get logs is currently limited.

  I'm still attempting recovery of the VM, as it's blocking further Ubuntu One upgrade testing that I'm engaged in. I'll add further information if/as I find it.
  --- 
  ApportVersion: 1.94.1-0ubuntu1
  Architecture: amd64
  DistroRelease: Ubuntu 12.04
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1331071487
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
  Package: update-manager 1:0.156.7
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
  Tags:  precise dist-upgrade
  Uname: Linux 3.2.0-18-generic x86_64
  UpgradeStatus: Upgraded to precise on 2012-03-07 (0 days ago)
  UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

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