@Alfi ciio, did you try to change the PRETTY_NAME on os-release file? It should be "Debian GNU/Linux 12 (bookworm)" to install HA Supervisor

https://www.loverpi.com/collections/le-potato It says open-source support. Free software is software you may use, share, modify and redistribute. Can le potato run entirely on free software, such that there is no piece of non free software on the computer? If so are the armbian le potato images free software images? https://www.armbian.com/lepotato/ Thank you.

This may or not be the case. Looking through the Ubuntu bug tracker, I find a lot of similarly failed upgrades. But at least ports.ubuntu.com was not disabled in the past: https://launchpadlibrarian.net/757026143/VarLogDistupgradeMainlog.txt from https://bugs.launchpad.net/ubuntu/+bug/2086530

@Zaf9670 Please run "armbianmonitor -u" on the board and share the link

Sounds like an error with X. @ALL above: Did you recently update any packages? Please pastebin or attach the content of the ~/.xsession-errors file. Go and search for it if necessary "sudo find / -name .xsession-errors*"