Only can offer one recommendation.
- Copy off the pertinent system configuration / apps list (
dpkg -l
). This includes making a tar archive of./Library
(from within /var/lib/plexmediaserver) - Backup
/home
as needed - Start from scratch, making certain to create a
/home
partition this time.
Once the OS is stable, and media mounted again in previous locations, the previous metadata can be easily recovered.