I have two sites A and B
site A has 4 Windows 2003 Servers with SP1. 2 of these are domain controllers and one of them is an Exchange 2003 server.
site B has a Windows 2003 Server R2 that I'm trying to promote to being a DC for this domain in site B.
I get this error message:
The operation failed because:
The Active Directory Installation Wizard cannot continue because the forest is not prepared for installing Windows Server 2003. Use the Adprep command-line tool to prepare both the forest and the domain. For more information about using the Adprep, see Active Directory Help.
"The version of the Active Directory schema of the source forest is not compatible with the version of Active Directory on this computer."
Would it corrupt my schema if I run adprep / forestprep on my Windows 2003 domain?