[Bug 1168404] Re: during dist upgrade from 12.10 to 13.04 b2... got the errore messagge "essential package 'ubuntu-minimal' can not be found anymore"

[melchiaros]

This corresponds further with the end that can be found in
VarLogDistupgradeMainlog.txt:


2013-04-12 15:35:02,609 DEBUG openCache()
2013-04-12 15:35:02,610 DEBUG failed to SystemUnLock() (E:Not locked) 
2013-04-12 15:35:09,731 DEBUG /openCache(), new cache size 41732
2013-04-12 15:35:09,731 DEBUG need_server_mode(): run in 'desktop' mode, (because of pkg 'ubuntu-desktop')
2013-04-12 15:35:13,089 DEBUG Running KeepInstalledSection rules
2013-04-12 15:35:14,371 DEBUG Kernel uname: '3.5.0-28-generic' 
2013-04-12 15:35:14,433 DEBUG ./get_kernel_list.sh returns: ['linux-generic', 'linux-image-generic', 'linux-virtual', 'linux-image-virtual', 'linux-rt', 'linux-image-rt']
2013-04-12 15:35:14,434 DEBUG linux-generic kernel already installed
2013-04-12 15:35:14,434 DEBUG Upgrading 'linux-generic' (Upgrading kernel from base-installer)

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https://bugs.launchpad.net/bugs/1168404

Title:
  during dist upgrade from 12.10 to 13.04 b2... got the errore messagge
  "essential package 'ubuntu-minimal' can not be found anymore" -
  affects kernel

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  i got this  error message durine the pre-installation tasks to migrate
  ubuntu from 12.10 to 13.04:

  "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 against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bug report."

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubuntu-release-upgrader-core 1:0.190.6
  ProcVersionSignature: Ubuntu 3.5.0-28.47-generic 3.5.7.9
  Uname: Linux 3.5.0-28-generic i686
  ApportVersion: 2.6.1-0ubuntu10
  Architecture: i386
  Date: Fri Apr 12 15:35:43 2013
  InstallationDate: Installed on 2013-02-13 (58 days ago)
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to quantal on 2013-04-12 (0 days ago)
  VarLogDistupgradeTermlog:

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