SOLVED: Jellyfin service not starting in Proxmox

[TheDreadPirate]

Running Jellyfin directly from the command line IS NOT the right solution, and passing --nowebclient will mean...well, no web UI.

There was an issue recently discovered during the installation process for the 10.9.10 release. Permissions are not being properly set on some directories during the package install process leading to what you described.

The workaround is to run these commands to manually set the permissions and then try starting the service properly.

Code:

sudo chown -R jellyfin: /etc/jellyfin /var/lib/jellyfin /var/log/jellyfin /var/cache/jellyfin /usr/share/jellyfin
sudo systemctl restart jellyfin

A hotfix release is being worked on to resolve this issue.