After PMS (plexmediaserver-ros6-binaries_1.14.0.5470-9d51fdfaa_amd64) upgrade on my ReadyNAS 316 OS 6.9.4 there is NO PLEX installation in my ReadyNAS.
Update: After trying to install this latest upgrade on the fifth try it is installing packages and configuring binaries. I will be back with the final result.
Update: Everything is back to normal! 
