So if you get an error message for the prerequisite "Check emkey is copied to the repository". For all this activity you need SYSMAN password.
Go to the OMS server and ORACLE_HOME/bin
- ./emctl config emkey -copy_to_repos
Now proceed again with the upgrade. Once the upgrade is finished, remove the key from the repository.
- ./emctl config emkey -remove_from_repos
To know the status of the emkey, execute
- ./emctl status emkey