[Bug 888758] Re: Unable to upgrade from 11.04 to 11.10

[Tim]

The upgrade cannot complete because of your custom PPA from gnome 3.  You will need to remove this PPA, and all other PPA's along with their packages, to continue.  Consider the tool 'ppa-purge'.
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** Changed in: update-manager (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/888758

Title:
  Unable to upgrade from 11.04 to 11.10

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

Bug description:
  Upgrade process to Oneiric failes permanently.
  ------------------------------------------------------------------------------
  This is output of sudo do-release-upgrade

  
  Checking package manager
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Building data structures... Done

  Calculating the changes

  Calculating the changes

  Could not determine the upgrade

  An unresolvable problem occurred while calculating the upgrade:
  E:Error, pkgProblemResolver::Resolve generated breaks, this may be
  caused by held 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 using the
  command 'ubuntu-bug update-manager' in a terminal.

  
  Restoring original system state

  Aborting

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.5
  ProcVersionSignature: Ubuntu 2.6.38-12.51-generic 2.6.38.8
  Uname: Linux 2.6.38-12-generic x86_64
  Architecture: amd64
  Date: Thu Nov 10 22:11:21 2011
  GConfNonDefault:
   /apps/update-manager/check_new_release_ignore=oneiric
   /apps/update-manager/first_run=false
   /apps/update-manager/window_size=(600,598)
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2011-11-10 (0 days ago)
  VarLogDistupgradeApttermlog:
   
  VarLogDistupgradeHistorylog:
   
  VarLogDistupgradeTermlog:

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