System issue stated below occurs during the process of running DBUA from 11.2.0. $ORACLE_HOME is giving me an error when I tried to connect with sqlplus /nolog from both home 10.2.0 and 11.2.0, it is doing great without any nightmare issues.
Database Upgrade Assistant
There is an error in creating the following process:
/db/data/dbase/10.2.0/bin/sqlplus - /NOLOG
The error is:
This is the first time I encountered this issue. I don't consider myself very proficient with oracle, that is why I am running out of ideas on this matter. The only thing I tried is set the ORACLE_SID and ORACLE_HOME parameters of 11.2.0 before launching the DBUA. I also checked on PATH variable. This is somewhat of a desperate situation, please help me pin point where shall I go next in illuminating this error.