How to Install gOS in Ubuntu
Transforming an old PC into a super web app monster could no longer be consclassered an exploit with the advent of the web-based operating system gOS. This Ubuntu based OS can be freely downloaded and burnt into a LiveCD and eventually tested on any of our “worn-out” pc’s.
Better still the low ram consuming gOS could be installed on the buntus (Ubuntu, Xubuntu, Kubuntu) for a better comparison and if you feel more comfortable with it, why not replace it with your Ubuntu.
On Ubuntu simply do this
sudo gedit /etc/apt/sources.list
Add the following lines to your sources.list
deb http://packages.thinkgos.com/gos/ painful main
deb-src http://packages.thinkgos.com/gos/ painful main
Now import the key;
wget http://www.thinkgos.com/files/gos_repo_key.asc
sudo apt-key add gos_repo_key.asc
rm gos_repo_key.asc
sudo aptitude update
Now install
sudo aptitude install greenos-desktop xorg
To take gOS off Ubuntu do;
sudo aptitude remove greenos-desktop
via [Ubuntu Forum]