[Bug 2008908] Re: Ubuntu 20.04 to 22.04 upgrade fails

[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: New => 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/2008908

Title:
  Ubuntu 20.04 to 22.04 upgrade fails

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

Bug description:
  The upgrade to Ubuntu 22.04 fails with the message:

  Calculating the changes

  Could not calculate the upgrade

  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. 

  But I understand third-party ppa were disabled during the upgrade, so
  it's unclear where the issue is coming from. apt.log complains about
  gcc instead:

  
  Investigating (0) libgcc1:amd64 < 1:10.3.0-1ubuntu1~20.04 @ii mK Ib >
  Broken libgcc1:amd64 Depends on gcc-10-base:amd64 < 10.3.0-1ubuntu1~20.04 -> 10.4.0-4ubuntu1~22.04 @ii umU > (= 10.3.0-1ubuntu1~20.04)
    Considering gcc-10-base:amd64 5 as a solution to libgcc1:amd64 75
    Added gcc-10-base:amd64 to the remove list
    Fixing libgcc1:amd64 via keep of gcc-10-base:amd64
    MarkKeep gcc-10-base:amd64 < 10.3.0-1ubuntu1~20.04 -> 10.4.0-4ubuntu1~22.04 @ii umU > FU=0

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.40 [origin: unknown]
  ProcVersionSignature: Ubuntu 5.15.0-60.66~20.04.1-generic 5.15.78
  Uname: Linux 5.15.0-60-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.25
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Mar  1 21:51:31 2023
  InstallationDate: Installed on 2020-10-02 (880 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2023-03-01 (0 days ago)
  VarLogDistupgradeTermlog:

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