[Bug 873880] [NEW] Attempted upgrade failed

[Mannex]

Public bug reported:

During attempted upgrade from 11.10 alternate CD, received this error:

Invalid package information

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.

The Update Manager then restores the system and fails the upgrade.

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 i686
Architecture: i386
Date: Thu Oct 13 23:44:09 2011
GConfNonDefault:
 /apps/update-manager/check_new_release_ignore=natty
 /apps/update-manager/first_run=false
 /apps/update-manager/show_details=true
 /apps/update-manager/window_size=(600,600)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to natty on 2011-10-14 (0 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 natty running-unity

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https://bugs.launchpad.net/bugs/873880

Title:
  Attempted upgrade failed

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

Bug description:
  During attempted upgrade from 11.10 alternate CD, received this error:

  Invalid package information

  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.

  The Update Manager then restores the system and fails the upgrade.

  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 i686
  Architecture: i386
  Date: Thu Oct 13 23:44:09 2011
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=natty
   /apps/update-manager/first_run=false
   /apps/update-manager/show_details=true
   /apps/update-manager/window_size=(600,600)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2011-10-14 (0 days ago)

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