[Bug 1995215] Re: cant upgrade ubuntu from 20.04 to 22.04, "some package block" no more error details

[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/1995215

Title:
  cant upgrade ubuntu from 20.04 to 22.04, "some package block" no more
  error details

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

Bug description:
  all app:* packages are removed by using "ppa-purge"
  ================================================================================
  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. 

  If none of this applies,
  [...]

  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  ================================================================================

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.39
  ProcVersionSignature: Ubuntu 5.14.0-1054.61-oem 5.14.21
  Uname: Linux 5.14.0-1054-oem x86_64
  ApportVersion: 2.20.11-0ubuntu27.24
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Sun Oct 30 17:10:51 2022
  InstallationDate: Installed on 2020-10-12 (747 days ago)
  InstallationMedia: Xubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-10-30 (0 days ago)

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