PMS Stopped working on Ubuntu Server upgrade from 18.0 to 20.04 LTS Upgrade

I found this topic that has a couple of elements that I wonder would pertain to my situation:

Basically, I want to place a backup copy of my database over the default installation database.

Do I need to make any other changes to configuration files?

Here’s another element that I want to ask about: I have a system disk that pretty much has nothing but the ubuntu os, programs and the plex database. All the other data is located on 4 data disks that use samba to for my windows pc acess. In reading the above link and the ones linked, I get the impression that I can do place the database files off the system disk. That would indicate that this would prevent this issue in future Ubuntu LTS updates.Is my reading of this correct?

At this point, I want to restore the PMS database to the system disk. Once I have that, I can image the system disk and experiment.