[Bug 1570834] Re: System upgrade to newer Ubuntu version not possible

[Ubuntu Foundations Team Bug Bot]

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

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1069133, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug.  Additionally, any further discussion regarding the bug should occur in the other report.  Please continue to report any other bugs you may find.
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** 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/1570834

Title:
  System upgrade to newer Ubuntu version not possible

Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid

Bug description:
  Unable to upgrade from Ubuntu 14.04 to 15.10.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.13.0-85.129-generic 3.13.11-ckt36
  Uname: Linux 3.13.0-85-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: i386
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Fri Apr 15 14:08:02 2016
  InstallationDate: Installed on 2015-02-18 (421 days ago)
  InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140723)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-04-15 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update.manager.release.upgrades: 2015-11-18T18:06:18.045547

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