As far as I know, Plex Media Server doesn’t use Preferences.xml on macOS (that’s FreeBSD/Linux/NAS device thing). PMS on macOS uses a ‘plist’ file like most apps on the platform.
To claim a macOS-based PMS server, you should simply need to:
- Start Plex Media Server from your Applications folder;
- Verify the Plex icon
>appears in the menu bar; - Click the Plex icon and select “Open Plex.”
This should open the Plex web app in your default browser and guide you through the claim process.
See this post for more details:
