[Bug 1934048] Re: Cannot upgrade Ubuntu mate 18.04 to 20.04

[Brian Murray]

*** 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 a location other than the offical Ubuntu archive. This version of
nodejs is greater than the one in the official archive and is keeping
some python 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/1934048

Title:
  Cannot upgrade Ubuntu mate 18.04 to 20.04

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

Bug description:
  This is a similar bug as Bug #1887544 which I have been following for 6 month but is now closed.
  "upgrade from 18.04 to 20.04 fails to calculate if python-dbg is installed".

  @Brian Murray (brian-murray) suggested :
  "Could you please open a new bug report using "ubuntu-bug ubuntu-release-upgrader"? Once you've done that let me know and I'll have a look at the logs."

  I could do this update on two other Unbuntu mate 18.04 machines (that
  I use less. ie fewer softwares).

  You should have the logs attached. Let me know if you need me to do extra actions.
  I have tried 10 times to upgrade the past motnhes.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.44
  ProcVersionSignature: Ubuntu 5.4.0-78.87~18.04.1-generic 5.4.124
  Uname: Linux 5.4.0-78-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.24
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: MATE
  Date: Wed Jun 30 07:28:49 2021
  InstallationDate: Installed on 2019-05-11 (780 days ago)
  InstallationMedia: Ubuntu-MATE 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-06-30 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.update-manager.release-upgrades: 2021-05-05T18:06:10.677012

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