I moved my external Seagate drive from my MacBook Pro to my PS4. I SEE all of my content, but I can’t play any of it. It’s all listed as unavailable.
You can’t play local content from a hard-drive. You need the server to send it, and a client to receive it.
Might want to review some of the support pages on Plex.
https://support.plex.tv/hc/en-us/articles/200288286-What-is-Plex-
