[Bug 1893043]

[Andrew Jennings]

The purge your recommended worked, many thanks :)

On Fri, 18 Sep 2020, 20:45 Brian Murray, <1893043 at bugs.launchpad.net>
wrote:

> Reviewing the files from your upgrade attempt you seem to have enabled a
> PPA that provides Xorg and python packages. This will prevent the
> upgrade as that PPA contains packages which generate failures when
> trying to calculate the upgrade. You can revert the PPA by installing
> the ppa-purge package from the official Ubuntu archive and then running
> 'sudo ppa-purge ppa:oibaf/graphics-drivers'.  After that you can try
> upgrading again and if it still fails open a new bug report. Thanks and
> good luck!
>
> ** Tags added: ppa xorg-oibaf-ppa
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1893043
>
> Title:
>   upgrade from 18.04 to 20.04 fails
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1893043/+subscriptions
>

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1893043

Title:
  upgrade from 18.04 to 20.04 fails

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

Bug description:
  When attempting a distribution upgrade from 18.04 to 20.04, the
  upgrade fails and returns the following message:

  Could not determine the upgrade

  An unresolvable problem occurred while calculating the upgrade.

   This was likely caused by:
   * Unofficial software packages not provided by Ubuntu
  Please use the tool 'ppa-purge' from the ppa-purge 
  package to remove software from a Launchpad PPA and 
  try the upgrade again.

  If none of this applies, then please report this bug using the command
  'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If you want
  to investigate this yourself the log files in '/var/log/dist-upgrade'
  will contain details about the upgrade. Specifically, look at
  'main.log' and 'apt.log'.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.38
  ProcVersionSignature: Ubuntu 4.15.0-112.113-generic 4.15.18
  Uname: Linux 4.15.0-112-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.16
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug 26 13:13:17 2020
  InstallationDate: Installed on 2018-08-27 (729 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-08-26 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2020-08-15T23:06:29.700204

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