[Bug 1069133] Re: Get upgrade error 12.04 - 12.10 "Could not determine upgrade" - xorg from ppa

[Brian Murray]

In the event that you have disabled the PPA repository the tool ppa-
purge will not work. One way to enable it would be to look in
/etc/apt/sources.list.d/ for an entry related to the PPA (e.g. oibaf)
and uncomment the lines pertaining to that PPA. After doing that try
running 'ppa-purge' again.

In the event that doesn't work or you don't find a sources.list snippet
relating to oibaf you could also try adding the PPA again with 'sudo
apt-add-repository' and then run 'ppa-purge'.

Finally, you could look in the attachments of the bug which you've
submitted for "installed.pkgs" (located in
VarLogDistupgradeAptclonesystemstate.tar.gz). In the installed.pkgs file
you'll find a list of all the packages you have installed and in that
file you'd want to search for pkgs with "oibaf" in the name. You could
then try installing the official version of those packages but it'd
likely be an arduous process as you'd need to sort out which order to
install packages and the right versions.

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https://bugs.launchpad.net/bugs/1069133

Title:
  Get upgrade error 12.04 - 12.10 "Could not determine upgrade" - xorg
  from ppa

Status in ubuntu-release-upgrader package in Ubuntu:
  Triaged
Status in ubuntu-release-upgrader package in Nexenta Operating System:
  New

Bug description:
  TEST CASE:
  1. Install a minimal Saucy amd64 (lxc container or VM)
  2. Install software-properties-common if it is not already installed and enable xorg-edgers PPA:
    $ sudo add-apt-repository ppa:xorg-edgers/ppa
  3. Install the task ubuntu-desktop
    $ sudo apt-get install ubuntu-desktop^
  4. Upgrade:
    $ sudo do-release-upgrade -d

  ACTUAL RESULT:
  Upgrade fails because it refuses to break the ABI of xorg.

  == Original Description ==
  Gets to the upgrade stage Setting new Software channels and the error window comes up on the Calculating the Changes part. Have got all security updates for 12.04 on and restarted but it still comes up. Using the proper software channels.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: ubuntu-release-upgrader-core (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-17.26-generic 3.5.5
  Uname: Linux 3.5.0-17-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu14
  Architecture: amd64
  Date: Sat Oct 20 17:16:19 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to precise on 2012-10-20 (0 days ago)

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