SMB Mount ( IPv6), JF Cleanup Too Early

[TheDreadPirate]

You're not making a jellyfin.service.conf file.  RequiresMountsFor goes into jellyfin.service itself.

If this happens SOMETIMES on reboot, this 100% sounds like the post I linked. Jellyfin is sometimes starting before the SMB share mounts.

Put RequiresMountFor in /etc/systemd/system/jellyfin.service.d/jellyfin.service directly.

Code:

[Unit]
Description = Jellyfin Media Server
After = network-online.target

[Service]
RequiresMountsFor=/data01/Musik2
Type = simple
EnvironmentFile = /etc/default/jellyfin
User = jellyfin
Group = jellyfin
WorkingDirectory = /var/lib/jellyfin
ExecStart = /usr/bin/jellyfin $JELLYFIN_WEB_OPT $JELLYFIN_FFMPEG_OPT $JELLYFIN_SERVICE_OPT $JELLYFIN_NOWEBAPP_OPT $JELLYFIN_ADDITIONAL_OPTS
Restart = on-failure
TimeoutSec = 15
SuccessExitStatus=0 143

[Install]
WantedBy = multi-user.target