[Bug 1309499] Re: Upgrade from 12.04 to 14.04 doesn't work

[Launchpad Bug Tracker]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no
activity for 60 days.]

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1309499

Title:
  Upgrade from 12.04 to 14.04 doesn't work

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

Bug description:
  maybe is not a problem due to update manager. By typying

  sudo kubuntu-devel-release-upgrade

  it is not able to update. It states
  An unresolvable problem occurred while calculating the upgrade.

   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

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.13
  ProcVersionSignature: Ubuntu 3.2.0-60.91-generic 3.2.55
  Uname: Linux 3.2.0-60-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Fri Apr 18 14:17:34 2014
  GsettingsChanges: com.ubuntu.update-manager launch-time 1397823246
  InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=
   TERM=xterm
   PATH=(custom, no user)
   LANG=it_IT.UTF-8
   SHELL=/bin/tcsh
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2014-04-18 (0 days ago)
  VarLogDistupgradeTermlog:

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