[Bug 1040830] Re: Cannot upgrade from 10.04 to 12.04.1

[Jean-Baptiste Lallement]

The problem is very likely caused by xorg-edgers ppa. You can use ppa-
purge to uninstall it and revert to the packages from the official
repository. Then run the release upgrade again and tell if it helped.

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Title:
  Cannot upgrade from 10.04 to 12.04.1

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

Bug description:
  When I am doing an upgrade from 10.04 to 12.04.1 I am seeing this error:
  An unresolvable problem occurred while calculating the upgrade:
  E:Unable to correct problems, you have held broken packages.

   This can be caused by:
   * Upgrading to a pre-release version of Ubuntu
   * Running the current pre-release version of Ubuntu
   * Unofficial software packages not provided by Ubuntu

  If none of this applies, then 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 10.04
  Package: update-manager 1:0.134.12.1
  ProcVersionSignature: Ubuntu 2.6.38-3.30~lucid1-generic 2.6.38-rc4
  Uname: Linux 2.6.38-3-generic x86_64
  Architecture: amd64
  Date: Thu Aug 23 20:44:12 2012
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=
   /apps/update-manager/first_run=false
   /apps/update-manager/show_versions=false
   /apps/update-manager/window_size=(600,600)
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  PackageArchitecture: all
  ProcEnviron:
   LC_TIME=en_GB.UTF-8
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: update-manager
  VarLogDistupgradeAptclonesystemstate.tar.gz: Error: [Errno 13] Permission denied: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
  VarLogDistupgradeTermlog:

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