In the dokumentation it shows a way to uninstall ZCM Primary Server from the zone, is it the same when you want to uninstall the product from the first installed PS?
When I rolled back the installation that did not work as it should it left some junk files or something that made it impossible to reinstall zcm again. Had to reinstall the OS and all again, therefore I ask this.

mono /opt/novell/zenworks/bin/ZENworksUninstall.exe x s http://IPaddress_of_the_server:port_number -u username -p password