I’m not very good with ubuntu but I’m running Ubuntu 18.04.1 and I installed the plexmediaserver snap from the store. I then mounted some USB drives in /mnt/Movies and /mnt/TV-Shows I used the Disks gui utility to mount them.
After mounting them in Disks it put the below line into /etc/fstab
LABEL=Movies /mnt/Movies auto nosuid,nodev,nofail,x-gvfs-show 0 0
When I’m in Plex it won’t see anything in /mnt/ It will see stuff in /home/user/ so if i mount to /home/user/Movies it sees the usb mounts. I would just prefer to have them mounted in /mnt/Movies
I’m not sure what i’m doing wrong or how i can get the plexmediaserver snap to see anything in /mnt/