[Bug 1987221] Re: dist-upgrade to 22.04 fails

[Nick Rosbrook]

*** This bug is a duplicate of bug 1970018 ***
    https://bugs.launchpad.net/bugs/1970018

Reviewing the files from your upgrade attempt, you have installed
packages from the deadsnakes PPA. Some of the packages installed are
newer than those in the official archive, which is keeping some python
packages installed which then prevents the upgrade from being
calculated. Please try using the ppa-purge tool to remove packages
installed from ppa:deadsnakes/ppa. After that you can try upgrading
again and if it still fails open a new bug report. Thanks and good luck!

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

** Tags added: deadsnakes-ppa

** This bug has been marked a duplicate of bug 1970018
   Cannot upgrade to ubuntu 21.10 from ubuntu 20.04.

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https://bugs.launchpad.net/bugs/1987221

Title:
  dist-upgrade to 22.04 fails

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

Bug description:
  dist-upgrade  to 22.04 fails with some errors

  In main.log we see:
  ...
  2022-08-21 18:33:43,685 DEBUG Comparing 5.4.0-124 with 5.15.0-46
  2022-08-21 18:33:43,778 DEBUG Marking 'ubuntu-desktop' for upgrade
  2022-08-21 18:33:44,060 WARNING Can't mark 'ubuntu-desktop' for upgrade (E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.)
  2022-08-21 18:33:44,060 DEBUG Marking 'ubuntu-gnome-desktop' for upgrade
  2022-08-21 18:33:44,341 WARNING Can't mark 'ubuntu-gnome-desktop' for upgrade (E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.)
  2022-08-21 18:34:09,234 ERROR Dist-upgrade failed: 'Broken packages after upgrade: ubuntu-desktop, ubuntu-gnome-desktop'
  2022-08-21 18:34:09,250 DEBUG abort called

  
  there are no held packages or partial installs afaik.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.38
  ProcVersionSignature: Ubuntu 5.4.0-124.140-generic 5.4.195
  Uname: Linux 5.4.0-124-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Aug 21 20:57:03 2022
  InstallationDate: Installed on 2016-08-18 (2193 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-08-21 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2022-08-06T12:08:22.757492

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