We have an old Server 2003 which is running Microsoft Windows Services for UNIX (in Master Mode) and two more domain controllers acting as Subordinate. I recently built a new Server 2008 R2 and ran DCPROMO on it and AD replication is working fine. It is also a writable DC. I want to migrate the Windows Services for UNIX from the old Master Server to this new Server 2008. I already installed the role required for that on the new Server 2008 R2. What do I need to do next.
I would like to first add this new Server 2008 R2 as a 'subordinate' and later when it is time I will promote it as 'Master'