Raja M Naveed

Drop Enterprise Manager repository manually

Logon SQLPLUS SYS user and follow the following instructions.

EXEC sysman.emd_maintenance.remove_em_dbms_jobs;
 EXEC sysman.setEMUserContext('',5);

DROP user sysman cascade;
DROP role MGMT_USER;
DROP user MGMT_VIEW cascade;
DROP public synonym MGMT_TARGET_BLACKOUTS;
DROP public synonym SETEMVIEWUSERCONTEXT;

Deconfig the dbcontrol

emca -deconfig dbcontrol db -repos drop

Now the new dbcontrol can be created

 emca -config dbcontrol db -repos create