• Firstly check the UUID of the disk you want to ad by using this command

sudo blkid

• Copy the UUID
• Then make a directory within the /media directroy e.g.

sudo mkdir /media/disk1

• open up fstab

sudo nano e/tc/fstab

• On the last line enter this

UUID=[insert ID] /media/library ext4 defaults 0 2

• Save the file, and then mount the disk using this command

sudo mount -a