Is it Raspbian or the 64-bit OS ?First I made sure all updates for Bookworm where installed, followed by a cleanup of obsolete packages. Then the name change, apt update, apt full-upgrade. I ignored rpd-wayland-all and rpd-x-all from the startpost due to not using a GUI.What did you do to upgrade, not just the name change from Bookworm to Trixie, but all the other commands you needed to do to get it read?
And are you sure you also updated the raspi.list sources?
This seems/is a chicken egg situation I have seen before. Don't know exactly, but it seems a situation, a sort of race-condition where both Debian and RPT packages have or are or want the latest or a later one. It will certainly be an issue I think if doing independent package upgrades. So a command like aptitude for just a exim4 will bring you in that situation. If one un-interrupted run full-upgrade, underlying dpkg will force things, also w.r.t. dependencies. That is my understanding, based on that I once managed to workaround/fix such a problem.
In this case I would give up and rollback and re-try. I use Btrfs and snapper snapshots so easy to do so, it is just a 'snapshot number-flip' and reboot then back to old situation. But here, you might dig deep in dpkg options and do per package install, I think, not sure. Else backups or fresh trixie.
Statistics: Posted by redvli — Sat Dec 06, 2025 10:09 am