[Bug 1988857] Re: Unable to upgrade to 22.04 due to 'unresolved issues'

[Nick Rosbrook]

*** This bug is a duplicate of bug 1987720 ***
    https://bugs.launchpad.net/bugs/1987720

I think you will also need to ppa-purge ppa:oibaf/graphics-drivers, as I
see this in VarLogDistupgradeAptlog.txt also:

  Installing libegl1 as Recommends of steam
    MarkInstall libegl1:i386 < none -> 1.4.0-1 @un uN Ib > FU=0
    Installing libegl-mesa0 as Depends of libegl1
      libegl-mesa0:i386 Depends on libglapi-mesa:i386 < 22.2~git2206220600.e8fc5c~oibaf~f @ii mK > (= 22.0.5-0ubuntu0.1) can't be satisfied!

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https://bugs.launchpad.net/bugs/1988857

Title:
  Unable to upgrade to 22.04 due to 'unresolved issues'

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

Bug description:
  I attempted to upgrade to 22.04, at first it was reporting PPA issues,
  I disabled all PPA from "other software" as it seems it was a common
  issue on the previous upgrade from 18 to 20, this cleared the 'ppa-
  purge' issue, and was able to reach further on the upgrade until the
  following shows up.

  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 1:20.04.39
  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: Tue Sep  6 09:02:27 2022
  InstallationDate: Installed on 2022-04-25 (133 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-09-06 (0 days ago)
  VarLogDistupgradeTermlog:

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