[Bug 1447713] [NEW] Unable to upgrade from Utopic to Vivid

[Nick Jones]

Public bug reported:

Using the Software Updater to upgrade from Utopic to Vivid, after
fetching the files I get the error message:

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.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: ubuntu-release-upgrader-core 1:14.10.10
ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
Uname: Linux 3.16.0-34-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.4
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Thu Apr 23 10:52:22 2015
InstallationDate: Installed on 2014-11-21 (153 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to utopic on 2015-04-23 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade utopic

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https://bugs.launchpad.net/bugs/1447713

Title:
  Unable to upgrade from Utopic to Vivid

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

Bug description:
  Using the Software Updater to upgrade from Utopic to Vivid, after
  fetching the files I get the error message:

  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.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubuntu-release-upgrader-core 1:14.10.10
  ProcVersionSignature: Ubuntu 3.16.0-34.47-generic 3.16.7-ckt8
  Uname: Linux 3.16.0-34-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Apr 23 10:52:22 2015
  InstallationDate: Installed on 2014-11-21 (153 days ago)
  InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to utopic on 2015-04-23 (0 days ago)
  VarLogDistupgradeTermlog:

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