SOLVED: Unbuntu Software updater crashing

[TheDreadPirate]

Ah. Yes, we drop support for EOL Ubuntu distros, which applies to 23.04.

Here is how I would do this.

1) Stop Jellyfin (sudo systemctl stop jellyfin)
2) Backup Jellyfin data and configs (/var/lib/jellyfin and /etc/jellyfin and move to non-OS drive)
3) Remove Jellyfin (sudo apt remove jellyfin*)
4) Modify Jellyfin repo source (/etc/apt/sources.list.d/jellyfin.sources). Replace suites field. kinetic changed to noble.
5) Now you should be able to upgrade Ubuntu to 24.04
6) Once the OS upgrade is complete you will need to manually install Jellyfin instead of using the script.
----a) sudo apt install jellyfin-ffmpeg6
----b) sudo apt install jellyfin-server (this will also install jellyfin-web as a dependency)
7) Stop Jellyfin (sudo systemctl stop jellyfin) and restore /var/lib/jellyfin and /etc/jellyfin from your backup.
----a) Will also need to chown the data and config dir (sudo chown -R jellyfin: /var/lib/jellyfin /etc/jellyfin)
----b) Start Jellyfin (sudo systemctl start jellyfin)