CPU Patch Install Process
1. Follow the instructions to apply the patch using OPatch but do not start the instances or the listeners
2. Apply the CPU sql script to each database from one node/instance only
set your environment to the instance name
cd directory specified in README.txt of patch
cd directory specified in README.txt of patch
> cd $ORACLE_HOME/rdbms/admin
sqlplus / as sysdba
SQL>@catbundle.sql cpu apply
SQL>@utlrp
SQL>exit
3. After all databases have been updated, start the remaining instances(in RAC).
4. Start the listeners
5. Check connectibity
Hope this help. Regards Rupam