[Bug 1988409] Re: Cannot upgrade from 20.04 LTS to 22.04 LTS

[Alex Yuen]

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

I have the same error during upgrade.  Then I try to uninstall Remmina
and remove the ppa from "Software and Update".  Then the upgrade goes
smooth!!

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https://bugs.launchpad.net/bugs/1988409

Title:
  Cannot upgrade from 20.04 LTS to 22.04 LTS

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

Bug description:
  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'.

  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: Thu Sep  1 11:44:31 2022
  InstallationDate: Installed on 2022-06-04 (88 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220223)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2022-09-01 (0 days ago)
  VarLogDistupgradeTermlog:
   
  mtime.conffile..etc.init.d.apport: 2019-12-06T23:22:30

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