i had a quick look around but couldn't find an answer to this in the linux section, though i know it's not a new question.
is there a more current ubuntu repository/ppa other than the documented one? from what i can tell 1.81 is the newest version i can install from the repo, but 1.901 is out now? or perhaps there is no longer a ppa being actively maintained?
To install PMS on Ubuntu do the following:
1. Download it from http://www.ps3mediaserver.org/
2. Extract it anywhere you like
3. Install Java (via terminal by typing sudo apt-get install default-jdk)
4. Run PMS.sh via Terminal (sudo sh /path_to_file/PMS.sh --- this file is located in the folder where you extracted the PMS server downloaded from http://www.ps3mediaserver.org/
If you are unable to play videos, run the following command: sudo apt-get install mencoder ffmpeg mplayer vlc
If you have Java installed, then you can skip step 3.