[Bug 1505767] Re: [dist-upgrader] error upgrade 14.04.03 lts

[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 different versions of packages essential to Ubuntu.  The
page, https://launchpad.net/~xorg-edgers/+archive/ppa, contains details
on to how to revert to the official Xorg packages for the xorg-edgers
PPA.  Instructions for reverting to official Xorg packages should be
similar for the PPA that you have enabled.

** Changed in: update-manager (Ubuntu)
       Status: New => Invalid

** Tags added: ppa xorg-edgers-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

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https://bugs.launchpad.net/bugs/1505767

Title:
   [dist-upgrader] error upgrade 14.04.03 lts

Status in update-manager package in Ubuntu:
  Invalid

Bug description:
  From upgrade manager i select upgrade to 14.04.03 LTS 
  it give me
   
  Impossibile calcolare l'avanzamento

  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

  Se non vengono installati, segnalare il problema usando il comando
  «ubuntu-bug ubuntu-release-upgrader-core» in un terminale.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: update-manager 1:0.156.14.19
  ProcVersionSignature: Ubuntu 3.2.0-91.129-generic-pae 3.2.71
  Uname: Linux 3.2.0-91-generic-pae i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu17.11
  Architecture: i386
  Date: Tue Oct 13 19:49:09 2015
  GsettingsChanges: com.ubuntu.update-manager launch-time 1416778246
  InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  SourcePackage: update-manager
  Symptom: ubuntu-release-upgrader-core
  UpgradeStatus: Upgraded to precise on 2015-10-13 (0 days ago)
  VarLogDistupgradeTermlog:

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