I tried what I could. Some comments so far: The error message stated by the UI is less than helpful. It suggests to use ppa-purge, which is alien to probably any normal user. The help-text given by the tool is cryptic, asking for information a user most likely does not have, and it does not help with any indication how to potentially find this information.
AND: You cannot copy/paste the text; I had to screenshot the error message to be able to peruse its contents. The error message in the main.log is "2025-04-21 12:08:47,088 ERROR Dist-upgrade failed: 'Defekte Pakete nach der Aktualisierung: fontconfig-config'" I've searched up and down the net about fontconfig, and there seems to be some issue with that, but the solutions (if any was given at all) are not helpful; removing and re-installing libfontconfig1, suggested as "fixing that issue" would basically remove half the system (about 600 dependencies like LaTeX and other productivity systems, but also loads of libs) Doing "apt list | grep fontconfig" gives this: fontconfig-config/jammy,jammy,now 2.13.1-4.2ubuntu5 all [installiert] fontconfig/jammy,now 2.13.1-4.2ubuntu5 amd64 [installiert] fontconfig/jammy 2.13.1-4.2ubuntu5 i386 libfontconfig-dev/jammy 2.13.1-4.2ubuntu5 amd64 libfontconfig-dev/jammy 2.13.1-4.2ubuntu5 i386 libfontconfig-doc/jammy,jammy 2.13.1-4.2ubuntu5 all libfontconfig1-dev/jammy 2.13.1-4.2ubuntu5 amd64 libfontconfig1-dev/jammy 2.13.1-4.2ubuntu5 i386 libfontconfig1/jammy,now 2.13.1-4.2ubuntu5 amd64 [installiert] libfontconfig1/jammy,now 2.13.1-4.2ubuntu5 i386 [Installiert,automatisch] librust-servo-fontconfig-sys-dev/jammy 5.1.0-2 amd64 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2066174 Title: do-release-upgrade crashes and roles back To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2066174/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs