[Bug 1328819] Re: update-grub debconf frontend fails running dpkg --compare-versions after kernel upgrade

[dino99]

grub legacy upstream is stopped, only receiving possible random fixes
locally. Grub2 is now the default bootloader with all the ubuntu
supported versions

** Changed in: grub (Ubuntu)
       Status: New => Invalid

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Title:
  update-grub debconf frontend fails running dpkg --compare-versions
  after kernel upgrade

Status in grub package in Ubuntu:
  Invalid

Bug description:
  After running "apt-get upgrade" with a new kernel (3.2.0-64) being
  installed, I get the following output:

  Searching for GRUB installation directory ... found: /boot/grub
  dpkg: error: --compare-versions takes three arguments: <version> <relation> <version>

  Type dpkg --help for help about installing and deinstalling packages [*];
  Use `dselect' or `aptitude' for user-friendly package management;
  Type dpkg -Dhelp for a list of dpkg debug flag values;
  Type dpkg --force-help for a list of forcing options;
  Type dpkg-deb --help for help about manipulating *.deb files;

  Options marked [*] produce a lot of output - pipe it through `less' or `more' !
  Searching for default file ... found: /boot/grub/default
  Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst
  Searching for splash image ... none found, skipping ...
  Found kernel: /boot/vmlinuz-3.2.0-64-generic
  Found kernel: /boot/vmlinuz-3.2.0-57-generic
  Found kernel: /boot/vmlinuz-3.2.0-56-generic
  Found kernel: /boot/vmlinuz-3.2.0-43-generic
  Found kernel: /boot/vmlinuz-3.2.0-39-generic
  Found kernel: /boot/vmlinuz-3.2.0-26-generic
  Found kernel: /boot/vmlinuz-3.2.0-25-generic
  Found kernel: /boot/vmlinuz-3.2.0-24-generic
  Found kernel: /boot/vmlinuz-2.6.38-8-generic
  Updating /boot/grub/menu.lst ... done

  This is repeatable by running "update-grub" (and not dependant on the
  current locale as I used "LANG=C update-grub".

  The error seems to happen in the debconf frontend, as the error occurs
  after running this bit:

  root at root:~# bash -x update-grub 
  + set -e
  + . /usr/share/debconf/confmodule
  ++ '[' '!' '' ']'
  ++ PERL_DL_NONLAZY=1
  ++ export PERL_DL_NONLAZY
  ++ '[' '' ']'
  ++ exec /usr/share/debconf/frontend update-grub
  (...)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub 0.97-29ubuntu66
  ProcVersionSignature: Ubuntu 3.2.0-57.87-generic 3.2.52
  Uname: Linux 3.2.0-57-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Wed Jun 11 10:35:48 2014
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub
  UpgradeStatus: Upgraded to precise on 2012-05-04 (767 days ago)

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