http://www.puschitz.com/OracleOnLinux.shtml
http://database.sarang.net/database/...stall/appb.htm
http://staff.in2.hr/denis/oracle/901...l_rh71_en.html
http://www.idevelopment.info/data/DB.../LINUX_5.shtml

On Linux you don't have a registry. Just delete the user and directory that you install oracle. You might have to delete the oratab file.

Hope this help