There was not enough free disk space to start the recording

[drmagoo]

The USB stick is not mounted at the moment so it cannot be used. Here is a great tutorial how to correctly setup your /etc/fstab configuration to mount your USB stick at boot. It’s most intended for mounting media, just adapt the mount points to your use case.

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 …