Not seeing folders or files on external hard drive

[tom80H]

Sounds like a permission issue.
Keep in mind that Plex is running under a dedicated user – so your user seeing the files does ensure Plex will.

You might want to review how you’re mounting those external drives.

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 …