Calculation error while upgrading from 20.04 to 22.04.1

[Uwe Koch]

1) Description: Ubuntu 20.04.4 LTS
Release: 20.04

2) ubuntu-bug ubuntu-release-upgrader-core as indicated in the error message

3) no calculation error while upgrading from 20.04 to 22.04.1 (ppa's were manually deactivated before)

4) the upgrade process was halted due to a calculation error

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.38
ProcVersionSignature: Ubuntu 5.15.0-46.49~20.04.1-generic 5.15.39
Uname: Linux 5.15.0-46-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 11 12:55:10 2022
InstallationDate: Installed on 2020-08-17 (723 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to focal on 2022-08-11 (0 days ago)
VarLogDistupgradeTermlog:

[Launchpad Janitor (janitor)]

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

[Nick Rosbrook (enr0n)]

From VarLogDistupgradeAptlog.txt:

Installing gstreamer1.0-pipewire as Depende of gnome-shell
  gstreamer1.0-pipewire:amd64 Depende on pipewire:amd64 < 0.3.56-1~20.04.sav0 @ii gK > (= 0.3.48-1ubuntu1) can't be satisfied!

Based on the version of pipewire you have installed, it looks like you had the pipewire-upstream PPA enabled at some point. Please try using the ppa-purge tool to remove packages installed from that PPA, and then try the upgrade again.

[Uwe Koch (uwe-koch)]

I could not purge a ppa that does not exist anymore.

So, I am not exactly sure how, I managed to do a partial upgrade from 20.04 to 22.04.1, which, however, as warned during the process, led to an install without graphical environment, after rebooting.

So, I removed two pipewire related packets (libpipewire-0.3-0 and libspa-0.2-modules), that could be causing the trouble, updated, dist-upgraded and installed --reinstalled ubuntu-desktop, which allowed me to recover the graphical environment. I have not rebooted yet, but I hope to keep the graphical environment working.

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]