Manually create Database Control -- missing SYSMAN user

Hi,

I’m trying to manually create Database Control in an aix 11gR2 database.  The database was created without the checking the “Configure Enterprise Manager” checkbox.  When running the following command, I would only get to the point where I enter the SYSMAN password:

$ emca -config dbcontrol db

I exit the utility and looked into the database and found that the SYSMAN user doesn’t exist.  How do I create the SYSMAN user (and objects) so that I can manually create Database Control? 

 

I found very little information on a missing SYSMAN user.  Do I need to create a repository to have the SYSMAN user create? I don’t want to maintain a repository; I thought that was for Grid control.