Cannot add library folder from second drive

[pshanew]

It’s almost certainly permissions.

Are you using a static mount for the drive, or are you letting the OS mount the drive for you under /media?

If the latter, you’ll need to create a static mount and set ownership and permissions correctly. This how-to entry should help you with that:

Linux Tips

Using other hard drives (Windows or Linux) with PMS This How-To is written to help with Internal and External drives. It also is written to demonstrate how to cope with NTFS and EXT4 formatted drives. By logical extension, any format supported by Linux can be handled using the technique shown here. In all cases, the goal is to give user plex permission to read your media files which Linux doesn’t allow by default due to its strict security model. We will walk through the steps needed …