I have a PC with a Lubuntu Groovy 20.10. Now I want to reactivate this PC. The lifetime of the distribution has expired. Any try to update software fails. It was not a LTS version, so it happened. I'm out.
Is the only way to a current version a backup all files in the personal directories, get a list of installed software and perform a complete new installation?
How can I update to recent version, preferable a LTS version?
Edit I got the hint to read This question. It looks like to give a great answer. But the command
sudo apt-get update && sudo apt-get dist-upgrade
fails with the error:
$ sudo apt-get update && sudo apt-get dist-upgrade
OK:1 http://packages.microsoft.com/repos/code stable InRelease
OK:2 http://old-releases.ubuntu.com/ubuntu groovy InRelease
OK:3 http://old-releases.ubuntu.com/ubuntu groovy-updates InRelease
OK:4 https://packages.microsoft.com/repos/vscode stable InRelease
Ign:5 http://old-releases.ubuntu.com/ubuntu groovy-old-releases InRelease
OK:6 http://old-releases.ubuntu.com/ubuntu groovy-backports InRelease
Fehl:7 http://old-releases.ubuntu.com/ubuntu groovy-old-releases Release
404 Not Found [IP: 185.125.190.40 80]
Paketlisten werden gelesen… Fertig
E: Das Depot »http://old-releases.ubuntu.com/ubuntu groovy-old-releases Release« enthält keine Release-Datei.
N: Eine Aktualisierung von solch einem Depot kann nicht auf eine sichere Art durchgeführt werden, daher ist es standardmäßig deaktiviert.
N: Weitere Details zur Erzeugung von Paketdepots sowie zu deren Benutzerkonfiguration finden Sie in der Handbuchseite apt-secure(8).
roughly translated as
Reading packet lists ... done
E: The repository »http://old-releases.ubuntu.com/ubuntu groovy-old-releases Release« doesn't contain any Release-File.
N: An update from such a repository can't be performed in a secure way, it's therefore deactivated.
N: You find further details about creation of a packet repository and the user configuration in the manual page of apt-secure(8)
The error messages come from sudo apt-get update. Is there anything I missed?
