[Bug 1448864] [NEW] Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade.

[Jonas Bülow]

Public bug reported:

The problem is that do-release-upgrade does not give any information
about what is wrong.

I upgraded from 12.04 to 14.04.2 and then directly to 15.04. The last
upgrade failed for unknown reason.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: ubuntu-release-upgrader-core 1:0.220.7
ProcVersionSignature: Ubuntu 3.2.0-56.86-generic 3.2.51
Uname: Linux 3.2.0-56-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CrashDB: ubuntu
Date: Mon Apr 27 07:52:46 2015
InstallationDate: Installed on 2013-01-31 (815 days ago)
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to trusty on 2015-04-27 (0 days ago)
mtime.conffile..etc.update.manager.release.upgrades: 2015-04-25T10:20:39.949285

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


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

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https://bugs.launchpad.net/bugs/1448864

Title:
  Could not calculate the upgrade  An unresolvable problem occurred
  while calculating the upgrade.

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

Bug description:
  The problem is that do-release-upgrade does not give any information
  about what is wrong.

  I upgraded from 12.04 to 14.04.2 and then directly to 15.04. The last
  upgrade failed for unknown reason.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: ubuntu-release-upgrader-core 1:0.220.7
  ProcVersionSignature: Ubuntu 3.2.0-56.86-generic 3.2.51
  Uname: Linux 3.2.0-56-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
  CrashDB: ubuntu
  Date: Mon Apr 27 07:52:46 2015
  InstallationDate: Installed on 2013-01-31 (815 days ago)
  InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to trusty on 2015-04-27 (0 days ago)
  mtime.conffile..etc.update.manager.release.upgrades: 2015-04-25T10:20:39.949285

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