Update from 20.04 to 21.04 aborted

[Richard Auer]

This may be related to 1899966 and possibly 1899272 - I can't really tell.

I had a similar problem when I tried to update from 20.04 to 20.10. I gave up on that, because I had hoped that I would not have any problems when an update to a newer version exists, but obviously the problem isn't gone.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.35
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
Date: Wed Aug 25 09:54:26 2021
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2021-08-25 (0 days ago)
VarLogDistupgradeAptlog:
 Log time: 2021-08-25 09:53:57.583170
 Log time: 2021-08-25 09:54:08.842015
 Log time: 2021-08-25 09:54:24.444209
 Log time: 2021-08-25 09:54:27.772244
VarLogDistupgradeTermlog:

mtime.conffile..etc.update-manager.release-upgrades: 2021-03-22T17:07:12.322433

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.