Create /config/plugins directory into the USB stick and copy plg files there. Download the Plex Media Server and TVheadend plg files from unRAID plugins page. To install Plex Media Server and TVheadend turn off the system and plug the USB stick back to Windows computer. Sometimes, you have to use a graphical desktop There are some programs and utilities that just can't be run at the command-line supplied by the default Linux images in the Windows Azure Linux gallery.
