There seems to be something misconfigured with your network setup as it was not possible to communicate with the Ubuntu archive. This is something you'll need to sort out for the upgrade process to start. From VarLogDistupgradeMainlogt.xt:
2022-01-21 09:31:21,011 DEBUG examining: 'deb http://archive.ubuntu.com/ubuntu hirsute main restricted multiverse' 2022-01-21 09:31:21,011 DEBUG verifySourcesListEntry: deb http://archive.ubuntu.com/ubuntu impish main restricted multiverse 2022-01-21 09:31:21,011 DEBUG url_downloadable: http://archive.ubuntu.com/ubuntu/dists/impish/Release 2022-01-21 09:31:21,011 DEBUG s='http' n='archive.ubuntu.com' p='/ubuntu/dists/impish/Release' q='' f='' 2022-01-21 09:31:36,037 DEBUG error from httplib: '<urlopen error [Errno -3] Temporärer Fehler bei der Namensauflösung>' 2022-01-21 09:31:36,038 DEBUG entry '# deb http://archive.ubuntu.com/ubuntu hirsute main restricted multiverse' was disabled (no Release file) ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1958628 Title: Fehlermedlung To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1958628/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
