I currently have a network with a single domain controller with no backup. I just purchased a new server with 2008 server installed. I am in the process of eventually getting rid of the 2003 server and running the network with the 2008 server and another server on 2008. I am trying to run dcpromo on the 2008 server to capture all the active directory setting on the 2003 server before docommissioning. When running DCPROMO i get an error message saying I need ot run adprep /forest befor running. When I try running adprep on the server it errors with adprep cannot run on this platform because it is not an active domain controller. After researching that I was told I need to run the adprep on my current active domain controller (2003 server) So I tried running the same program on my current active domain controller and get the following error message; "adprep was unable to extend the schema. The schema master did not complete a replication cycle after the last the schema master must complete at least one replication cycle before the schema can be extended. "
My big question is that if right now I only have one server as a active domain controller how would I ever be able to replicate? I would like to set up this second server, replicate, and eventually set as the main domain controller and decommission the old server.