[Bug 807637] Re: upgrade to new 11.10 distribution version fails

[RedSingularity]

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** Changed in: update-manager (Ubuntu)
       Status: Incomplete => Invalid

** Converted to question:
   https://answers.launchpad.net/ubuntu/+source/update-manager/+question/164270

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https://bugs.launchpad.net/bugs/807637

Title:
  upgrade to new 11.10 distribution version fails

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

Bug description:
  Upgrade to 11.10 fails with: Could not calculate 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.
  ---
  Not sure why...

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: update-manager 1:0.150.2
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  Date: Fri Jul  8 13:35:51 2011
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to natty on 2011-07-08 (0 days ago)

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