Oracle 11GR2 2.04 EM changes the way the database is not rebuilt after hostname

1)

Backup Delete $oracke_home/xxxx-sid's em directory; Copy the Xxx-sid em name directory to be created;

Backup Delete $oracke_home/oc4j/j2ee/xxxx-sid's em directory; Copy the Xxx-sid em name directory to be created;

2) I do not know if this step must

Modify $ORACKE _home/xxxx-sid/sysman/config/emd.properties To modify the configuration of the corresponding new SID individually.

2) Restart the machine

3) Export $ORACLE _unqname=sid or add in ~/.base_profile

4) Emctl Config Dbcontrol DB is configured to be normal after a successful configuration.