[Bug 1987719] Re: cannot upgrade from 20.0.4 to version 22

[Nick Rosbrook]

*** This bug is a duplicate of bug 1889250 ***
    https://bugs.launchpad.net/bugs/1889250

Reviewing the files from your upgrade attempt, you have installed nodejs
from the nodesource PPA. This version of nodejs is greater than the one
in the official archive and is keeping some packages installed which
then prevents the upgrade from being calculated. Please remove nodejs
along with any other packages from that archive and disable the archive.
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: nodesource-nodejs

** This bug has been marked a duplicate of bug 1889250
   Unable to calculate the upgrade to 20.04 due to nodejs from nodesource

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https://bugs.launchpad.net/bugs/1987719

Title:
  cannot upgrade from 20.0.4  to version 22

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

Bug description:
  I want to upgrade os to ubuntu 22.04 lts. But got error:

  An unresolvable problem occurred while calculating the upgrade.

   This was likely caused by:
   * Unofficial software packages not provided by Ubuntu
  Please use the tool 'ppa-purge' from the ppa-purge 
  package to remove software from a Launchpad PPA and 
  try the upgrade again.

  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'.

  i followed the instruction, but still cannot upgrade the version

  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: Fri Aug 26 09:39:31 2022
  InstallationDate: Installed on 2022-06-29 (58 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-08-26 (0 days ago)
  VarLogDistupgradeTermlog:

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