[Bug 1589236] Re: Could not calculate the upgrade

[Brian Murray]

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

Reviewing the files from your upgrade attempt you seem to have enabled a
PPA that provides Xorg packages. This will prevent the upgrade as that
PPA contains package version numbers greater than the release to which
you are upgrading. You can revert the PPA by installing the ppa-purge
package from the official Ubuntu archive and then running 'sudo ppa-
purge oibaf'.  After that you try upgrading and again and if it still
fails open a new bug report.  Thanks and good luck!

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Invalid

** Tags added: ppa xorg-oibaf-ppa

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

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1589236

Title:
  Could not calculate the upgrade

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

Bug description:
  Existing version: 14.04
  Trying to upgrade to Version 15.10, I got this message during the upgrade procedure:

  
  Distribution Upgrade => Setting new software channels
  <
  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

  If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal.
  >

  None of the three proposed causes being true, it brings me here to report the bug.
  I'd appreciate it if you shed some light on the case and help me through the installation.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 3.16.0-71.92~14.04.1-generic 3.16.7-ckt27
  Uname: Linux 3.16.0-71-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.21
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Sun Jun  5 17:09:16 2016
  InstallationDate: Installed on 2015-12-29 (158 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2016-06-05 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update.manager.release.upgrades: 2016-06-05T16:20:10.901445

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1589236/+subscriptions