How to upgrade Oracle 11g 64bit from to

Jephe Wu -

Objective: easily upgrade Oracle 11g to
Environment: CentOS 5.5 64bit, Oracle 11g


1. ssh into server as user 'oracle', then type in 'vncserver'
2. From windows pc, use vncviewer to connect to server.
3. at xterm windows, run Oracle installer, use the same path as what is using. You cannot choose the different path.
4. follow the screen instruction to finish upgrading
5. use dbua command to finished database upgrading
6. lsnrctl start, sqlplus / as sysdba ; alter system register
7. database should has already been started by dbua itself.