Shuts down on startup

[hoewer]

Thanx for your immidiate reply and the basic explanation of your startup-routine.

After some test I can report that even "sleep 10" does it's job (rebooted 2 times now), possibly even "sleep 5" would be enough.
Unfortunately I can't figure out which activity is delaying the MinimServer startup process. Of course there's heavy disk activity on startup, but I can't identify which processes are responsible.
I know some docker containers need a while before being active, if manually started. Maybe your assumption regarding docker is correct.

I am happy to assist if any testing is required.