[Bug 2009270] Re: can't update ubuntu version. Help me please

[Dominik Viererbe]

Hello Stefaniia, thanks for taking the time to report your problem to
help improve Ubuntu.

You have added multiple custom PPAs (Personal Packet Archives) to your apt configuration files (/etc/apt/sources.list.d).
This is a common cause of errors when upgrading packages because the custom PPAs can contain newer versions of packages than the official ubuntu archive, making it impossible to resolve dependencies.

You should remove/disable the custom PPAs and uninstall the custom packages before you retry the upgrade.
It is not sufficient to just disable the custom PPAs as you will still have package versions from custom PPAs, which may provide package versions greater than the release to which you are upgrading. 

You can use the ppa-purge tool to remove packages from custom PPAs.

After a successful upgrade, you can re-enable/install the PPAs and
packages.

Here is a Guide for removing/disabling PPAs as well as adding/re-enable
PPAs: https://help.ubuntu.com/community/Repositories/Ubuntu

Other Bug reports that are similar to yours:
- https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1875141
- https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1970109
- https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1987221
- https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1970018
- https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1992989

[READ ME!] Please respond if the advice was helpful and if your problem
persists.

P.S.: There is a syntax error in your etc/apt/sources.list.d/openvpn-
aptrepo.list configuration file.

It contains the line:
deb http://build.openvpn.net/debian/openvpn/<stable> <focal> main

Which should be (notice the missing '<', '>'):
deb http://build.openvpn.net/debian/openvpn/stable focal main

This should not be the cause of your problem because apt update will
ignore the line.

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https://bugs.launchpad.net/bugs/2009270

Title:
  can't update ubuntu version. Help me please

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

Bug description:
  Hello, I want to update my ubuntu version, but I get an error. How can
  I fix and upgrade?

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubuntu-release-upgrader-core 1:20.04.40
  ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
  Uname: Linux 5.15.0-67-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.25
  Architecture: amd64
  CasperMD5CheckResult: skip
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Mar  4 18:33:44 2023
  InstallationDate: Installed on 2022-07-29 (218 days ago)
  InstallationMedia: Ubuntu 20.04.4 LTS "Focal Fossa" - Release amd64 (20220723)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to focal on 2023-03-04 (0 days ago)
  VarLogDistupgradeTermlog:

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