the last 3 updates caused the server not to re-start after installing from the .deb file. The reason was I have my library on a custom path. It used to work, without overwriting my custom settings. Now it seems I need to re-adjust the setting in the plexmediaserver.service systemd file on every update.
If I delete the symlink in /etc/systemd/system/multi-user.target.wants and replace it with my custom file (I think that’s the way it was, and supposed to be… long time since I set this, so don’t remember exactly.), on update process it gets deleted and replaced again with a symlink to /lib/systemd/system/.
Ok thank you - done that now.
Just notice, the way I did it before, I also got from plex support site, so that must have been updated, after I did my customization based on a plex tutorial
/etc/systemd/system/multi-user.target.wants/plexmediaserver.service is a SYMLINK which is created by the statement systemctl enable plexmediaserver and links back to /lib/systemd/system/plexmediaserver.service.
It even tells you it created the link when you type systemctl enable plexmediaserver.service.
It tells you it’s removing the link when you say disable.