[Bug 873607] Re: ubuntu-minimal package not found anymore during upgrade to ubuntu 11.10

[Walter Garcia-Fontes]

*** This bug is a duplicate of bug 873468 ***
    https://bugs.launchpad.net/bugs/873468

Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug NUMBER, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
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https://bugs.launchpad.net/bugs/873607

Title:
  ubuntu-minimal package not found anymore during upgrade to ubuntu
  11.10

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

Bug description:
  While upgrading to ubuntu 11.10 the updater failed with the following
  message, instead of completing upgrade:

  After your package information was updated the essential package 'ubuntu-minimal' can not be found anymore.
  This indicates a serious error, please report this bug using the command 'ubuntu-bug update-manager' in a terminal and include the files in /var/log/dist-upgrade/ in the bug report.

  $lsb_release -rd
  Description:	Ubuntu 11.04
  Release:	11.04

  $ apt-cache policy update-manager
  update-manager:
    Installed: 1:0.150.3
    Candidate: 1:0.150.3
    Version table:
   *** 1:0.150.3 0
          500 http://gb.archive.ubuntu.com/ubuntu/ natty-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:0.150 0
          500 http://gb.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.3
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  NonfreeKernelModules: nvidia
  Architecture: amd64
  Date: Thu Oct 13 19:43:19 2011
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=
   /apps/update-manager/first_run=false
   /apps/update-manager/window_size=(600,600)
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_GB:en
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2011-10-13 (0 days ago)

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