sqlplus / as sysdba, ORA-01031: insufficient privileges
- First while Installing the primary group of oracle user was set to other, later it has been modified to dbaprod.
- After modification not able to login to to oracle as /as sysdba user
- Need to modify config.s file under $ORACLE_HOME/rdbms/lib/config.s or config.c (depends on env) in my server file was config.s
- backup the current config.s file as orig_config.
To effect these changes run the mentioned below command:
make -f ins_rdbms.mk ioracle
chmod 755 /appl/11.2.0/dbhome_1//bin
After changing the group now oracle user can login successfully :)