[Bug 1318169] Re: upgrading from 12.04 LTS to 14.04 LTS crashes

[Brian Murray]

*** This bug is a duplicate of bug 1279762 ***
    https://bugs.launchpad.net/bugs/1279762

** This bug has been marked a duplicate of bug 1279762
   upgrade to 14.04 from 13.10 failed - cinnamon fails to upgrade

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https://bugs.launchpad.net/bugs/1318169

Title:
  upgrading from 12.04 LTS to 14.04 LTS crashes

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  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

  Si nada de esto aplica, informe de este error usando la orden «ubuntu-
  bug ubuntu-release-upgrader-core» en una terminal.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.13
  ProcVersionSignature: Ubuntu 3.2.0-58.88-generic 3.2.53
  Uname: Linux 3.2.0-58-generic x86_64
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  Date: Sat May 10 14:27:51 2014
  GsettingsChanges:
   com.ubuntu.update-manager first-run false
   com.ubuntu.update-manager launch-time 1399722806
   com.ubuntu.update-manager show-details true
   com.ubuntu.update-manager window-height 539
   com.ubuntu.update-manager window-width 600
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=es_ES.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2014-05-10 (0 days ago)
  VarLogDistupgradeTermlog:

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