I’m happily running Plex on a Raspberry pi 3 with a USB drive attached. As I’m running out of space on this drive I’ve moved my music to a second drive. I’ve attached this second drive to my router in order to make it available to other devices. They (Sonos for example) can see it. I know that I could also connect it to my pi but I’m concerned about power as I’m not using a USB powered hub.
What do I have to add to my Plex Media Server configuration to allow it to see this drive?
I’m a Mac user and Finder can mount and access the drive.
I would suggest that you mount the device on the Pi as an external drive - so something in /media/ would probably work.
The first step is to create the folder under that drive - it will need to be read / writeable by the Plex user (probably / hopefully ‘plex’)
How you actually mount the drive will depend on how the drive has been shared (CIFS/ SMB / AFP / NFS etc) - to solve that a web search would probably be a better bet. It will likely be something like;
sudo mount -t {type of sharing} -o username=,password= ///path-to-directory/music /media/path/to/local/directory/on/pi
If you can then browse to that directory on the Pi, you have the drive mounted in /media and you probably want to change your /etc/fstab so that it mounts at boot. You should then able to point Plex at it as if it is a local drive (so, add library).