[Bug 1987344] Re: 22.04.1 upgrade from 20.04 fails "unresolvable problem occurred while calculating the upgrade;

[Nick Rosbrook]

It looks like packages from ppa:savoury1/display are causing problems
with the upgrade calculation, e.g. from the apt.log:

Investigating (0) libgbm1:amd64 < 22.1.7-0ubuntu1~20.04.sav0 @ii mK Ib >
Broken libgbm1:amd64 Breaks on libgbm1:i386 < none -> 22.0.5-0ubuntu0.1 @un uN Ib > (!= 22.1.7-0ubuntu1~20.04.sav0)
  Considering libgbm1:i386 1 as a solution to libgbm1:amd64 60
  Added libgbm1:i386 to the remove list
  Conflicts//Breaks against version 22.0.1-1ubuntu2 for libgbm1 but that is not InstVer, ignoring
  Fixing libgbm1:amd64 via keep of libgbm1:i386
  MarkKeep libgbm1:i386 < none -> 22.0.5-0ubuntu0.1 @un uN Ib > FU=0

Please try removing packages from this ppa using the ppa-purge tool:

$ ppa-purge ppa:savoury1/display

After that, try the upgrade again.

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

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https://bugs.launchpad.net/bugs/1987344

Title:
  22.04.1 upgrade from 20.04 fails "unresolvable problem occurred while
  calculating the upgrade;

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

Bug description:
  upgrade to 22.04.1 from 20.04.4 LTS fails with this information:

  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 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: Mon Aug 22 14:10:26 2022
  InstallationDate: Installed on 2022-04-18 (125 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-08-22 (0 days ago)
  VarLogDistupgradeTermlog:

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