[Bug 1938889] Re: unable to upgrade to 20.04

[Chris Guiver]

Thank you for taking the time to report this issue and helping to make
Ubuntu better.

You have a number of 3rd party packages that are stopping the upgrade,
eg. mesa-vdpau-drivers:amd64
(21.2.0~rc3+git2108022230.58bf0165ca0~b~mesarc5) which has a package
ver. that prevents upgrade to focal.

Please remove your 3rd party (Unofficial software packages) using a tool
like 'ppa-purge' from your PPA's and try again.

I've marked this incomplete, as third party packages from PPAs have
prevented the upgrade; the upgrade tools are intended to work with
Ubuntu repository software only. If you believe I'm in error, please
leave a comment explaining why and you can return the status to "New".


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

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https://bugs.launchpad.net/bugs/1938889

Title:
  unable to upgrade to 20.04

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

Bug description:
  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  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 1:18.04.44
  ProcVersionSignature: Ubuntu 5.4.0-80.90~18.04.1-generic 5.4.124
  Uname: Linux 5.4.0-80-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.24
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Aug  4 13:20:50 2021
  InstallationDate: Installed on 2019-05-26 (800 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-08-04 (0 days ago)

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