[Bug 1311060] Re: cannot upgrade from 13.10 to 14.04

[Jean-Baptiste Lallement]

*** This bug is a duplicate of bug 1069133 ***
    https://bugs.launchpad.net/bugs/1069133

** This bug has been marked a duplicate of bug 1069133
   Get upgrade error 12.04 - 12.10 "Could not determine upgrade" - xorg from ppa

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https://bugs.launchpad.net/bugs/1311060

Title:
  cannot upgrade from 13.10 to 14.04

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

Bug description:
  Tried to upgrade from 13.10 to 14.04 however after 5 mins or so it
  reports the following error:

  Could not calculate the upgrade

  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

  
  Restarting, and re-initiating the process does not resolve the issue

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-release-upgrader-core 1:0.205.6
  ProcVersionSignature: Ubuntu 3.11.0-20.34-generic 3.11.10.6
  Uname: Linux 3.11.0-20-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Tue Apr 22 11:53:23 2014
  InstallationDate: Installed on 2014-03-11 (41 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-04-22 (0 days ago)
  VarLogDistupgradeTermlog:

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