SOLVED: Jellyfin Service Fails to Start (but Server Still Works)

[TheDreadPirate]

Code:

sudo systemctl start jellyfin
sudo systemctl status jellyfin

If it fails to start, redo this command.

Code:

sudo journalctl -u jellyfin -n 200 --no-pager

Because the output you shared from the last time only appears to have your attempts to start it will the extra ffmpeg option, which cause it to fail to start because it is already defined.