Can someone point me to an article, or provide step by step instructions on how to promote a 2012 R2 server to a domain controller when your current DC is Windows Server 2003. I've tried to raise the domain functional level of the 2012 R2 server, but it tells me I don't have to since the current DC is 2003. But when I try to promote the 2012 R2 to a domain controller it tells me...
To update the domain functional level, the Active Directory Domain Controllers in the domain must be running the appropriate version of windows.
Current domain functional level
Windows Server 2003
The following Active Directory Domain Controllers are running earlier versions of windows:
domain Name AD DC Version of Windows
sollitt.local srvsol02.sollitt.local Windows Server 2003 5.2 (3790)