As far as I know, installer is setting up Guvnor and all processes comes from its repository. So the easiest way is to import your new process into default package of the Guvnor's repository and it should show up right after in the console.
Alternatively you could model your process directly in the designer that is embedded in the Guvnor, then save it and build a package, snapshot and .... off you go.
HTH