What you have to do is as fallows:
1. Login with SSH to your FreeNAS (or alternatively go to shell in WebGUI)
2. type: 'jls' (without ' ' ) and take the note of the # of jail of your Plex installation
3. type: 'jexec # csh' (where # is the number of the jail noted in last step)
4. type: 'fetch -o PMS_Updater.sh https://raw.githubusercontent.com/mstinaff/PMS_Updater/master/PMS_Updater.sh'
5. type: 'chmod 755 PMS_Updater.sh'
6. type: './PMS_Updater.sh -u PlexPass_User -p PlexPass_password -a'
after that you'll be updated to the latest PlexPass version. To update again you do steps 1,2,3 and 6.
like mstinaff wrote remember: Standard disclaimers apply. Understand what you are doing. Make your backups. Call your mother. etc
Hi God, worked likea charm! Thanks for the detailed steps.
For other coming and reading this post I can also mention that if you have special charachters ('&') in your plexpass password it won't work doing step 6 and you have to change password on the plexpass acount for it to work.
Regards,
TimmelTV