[Bug 1309477] Re: Cannot upgrade to 14.04 from 13.10

[John Aivalis]

Okay

$> ppa-purge ppa:oibaf/graphics-drivers

seems to get me past this error. I hope I wont get any graphics issues
after the upgrade. Thank you

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https://bugs.launchpad.net/bugs/1309477

Title:
  Cannot upgrade to 14.04 from 13.10

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

Bug description:
  In step 2 of 6 ("Setting new software sources") after fetching files I
  get a

  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.

  Any ideas?

  Thanks in advance,
  John

  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
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri Apr 18 13:03:25 2014
  InstallationDate: Installed on 2013-12-29 (109 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-04-18 (0 days ago)
  VarLogDistupgradeTermlog:

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