While logged in as root, run "system-config-display" in order to initially set up your X config file.
Back at the root prompt, run "startx" to actually start your X session.
Once X boots, start Firefox by navigating to "Applications > Internet > Firefox Web Browser." Its homepage should default to "http://localhost/," so it should already display the Rocks web interface.
Feel free to explore the menus of the web interface. You can generate graphs, check the health of your cluster, and view job submissions to the SGE queue. Most of these entries will be blank now, but you can watch the "Cluster Status (Ganglia)" page to see when your nodes are fully up. A listing of each individual node and its status is at the bottom of the page.
For the rest of the activities, you can either stay in X and use a virtual terminal (Right-click on the Desktop, "Open Terminal"), or log out of X (Actions > Log Out) to return back to your console session.
-- Main.echrzano - 14 Nov 2006