[Bug 1957065] Re: Update from 21.04 to 21.10

[Brian Murray]

You have multiple meta release packages installed and their dependencies
are causing the release upgrader to fail to calculate the upgrade path.
Please choose to either have the ubuntu-mate or xubuntu metapackages
installed. From VarLogDistUpgradeMain.log:

2022-01-11 11:11:01,757 DEBUG MetaPkgs: ubuntu-mate-core ubuntu-mate-
desktop xubuntu-core xubuntu-desktop


** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1957065

Title:
  Update from 21.04 to 21.10

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

Bug description:
  update-manager results in a error message 
  "Es konnte nicht ermittelt werden, welche Systemaktualisierungen verfügbar sind

  Ein unlösbares Problem trat während der Berechnung der
  Systemaktualisierung auf.

   Wenn keine dieser zutrifft, melden Sie bitte den Fehler mithilfe des
  Befehls 'ubuntu-bug ubuntu-release-upgrader-core' in einem Terminal.
  Wenn Sie dies selbst untersuchen möchten, finden Sie in den
  Protokolldateien unter »/var/log/dist-upgrade« Details zur
  Systemaktualisierung. Schauen Sie sich insbesondere »main.log« und
  »apt.log« an."

  So, there am I ...

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: ubuntu-release-upgrader-core 1:21.04.17
  ProcVersionSignature: Ubuntu 5.11.0-46.51-generic 5.11.22
  Uname: Linux 5.11.0-46-generic x86_64
  ApportVersion: 2.20.11-0ubuntu65.4
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  Date: Tue Jan 11 11:13:28 2022
  InstallationDate: Installed on 2020-12-08 (399 days ago)
  InstallationMedia: Ubuntu-MATE 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=de_DE
   TERM=xterm-256color
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to hirsute on 2022-01-11 (0 days ago)
  VarLogDistupgradeTermlog:

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