[Bug 833562] [NEW] grub-update doesn't check for removal kernels

[RoyK]

Public bug reported:

I had 2.6.35-25 installed on a few machines, and found it wasn't really
what I needed, and wanted to go back to 2.6.23-xx, so I just uninstalled
(apt-get remove --purge) the 2.6.35 image. This ran grub-update as
normal. After reboot, grub tried and failed to start 2.6.35-25.
Rebooting on a rescue CD showed /boot/grub/grub.cfg was the same old one
since I installed 2.6.35-25. Running grub-update manually didn't change
this either. The fix was to run grub-mkconfig -o /boot/grub/grub.cfg
directly, even though the documentation at
https://help.ubuntu.com/community/Grub2 says this is done with grub-
update.

I think this needs to be fixed, because without it, it may render a
system unbootable. If grub-update could be made to check for the
presence of the kernel files, or perhaps just run grub-mkconfig for each
update, that'd be preferable.

roy

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: grub-pc (not installed)
ProcVersionSignature: Ubuntu 2.6.32-33.72-server 2.6.32.41+drm33.18
Uname: Linux 2.6.32-33-server x86_64
Architecture: amd64
Date: Thu Aug 25 09:26:38 2011
InstallationMedia: Ubuntu-Server 10.04.2 LTS "Lucid Lynx" - Release amd64 (20110211.1)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/csh
SourcePackage: grub2

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid

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https://bugs.launchpad.net/bugs/833562

Title:
  grub-update doesn't check for removal kernels

Status in “grub2” package in Ubuntu:
  New

Bug description:
  I had 2.6.35-25 installed on a few machines, and found it wasn't
  really what I needed, and wanted to go back to 2.6.23-xx, so I just
  uninstalled (apt-get remove --purge) the 2.6.35 image. This ran grub-
  update as normal. After reboot, grub tried and failed to start
  2.6.35-25. Rebooting on a rescue CD showed /boot/grub/grub.cfg was the
  same old one since I installed 2.6.35-25. Running grub-update manually
  didn't change this either. The fix was to run grub-mkconfig -o
  /boot/grub/grub.cfg directly, even though the documentation at
  https://help.ubuntu.com/community/Grub2 says this is done with grub-
  update.

  I think this needs to be fixed, because without it, it may render a
  system unbootable. If grub-update could be made to check for the
  presence of the kernel files, or perhaps just run grub-mkconfig for
  each update, that'd be preferable.

  roy

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: grub-pc (not installed)
  ProcVersionSignature: Ubuntu 2.6.32-33.72-server 2.6.32.41+drm33.18
  Uname: Linux 2.6.32-33-server x86_64
  Architecture: amd64
  Date: Thu Aug 25 09:26:38 2011
  InstallationMedia: Ubuntu-Server 10.04.2 LTS "Lucid Lynx" - Release amd64 (20110211.1)
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/csh
  SourcePackage: grub2

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