[Bug 1309335] Re: ubuntu gnome 13.10 fails to upgrade to 14.04

[Jean-Baptiste Lallement]

Reviewing the files from your upgrade attempt you seem to have enabled
the Oibaf PPA (https://launchpad.net/~oibaf/+archive/graphics-drivers) .
This will prevent the upgrade as that PPA contains different versions of
packages essential to Ubuntu. Please revert to the official Xorg
packages and try the upgrade again.

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

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https://bugs.launchpad.net/bugs/1309335

Title:
  ubuntu gnome 13.10 fails to upgrade to 14.04

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

Bug description:
  When I run do-release-upgrade, this is at the end:

  
  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. 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 
  === Command detached from window (Thu Apr 17 23:19:19 2014) ===
  === Command terminated with exit status 1 (Thu Apr 17 23:19:19 2014) ===

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-release-upgrader-core 1:0.205.5
  ProcVersionSignature: Ubuntu 3.11.0-19.33-generic 3.11.10.5
  Uname: Linux 3.11.0-19-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Thu Apr 17 23:10:46 2014
  InstallationDate: Installed on 2012-10-21 (543 days ago)
  InstallationMedia: Ubuntu GNOME Remix 12.10 "Quantal Quetzal" - Release amd64(20121018)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-04-18 (0 days ago)

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