I just finished adding the first Server 2008 R2 in our network which is running on AD 2003. I used ADPREP for this. Currently our AD is running on Windows 2003 Server level (Forest/Domain) . I would like to know how to promote the new DC's (I will add two more 2008 R2 DC's in next few weeks) to replace the current DC's running on Server 2003 (Three Domain controllers).
Basically the question is to how to transfer existing roles
Domain Naming Master
RID Pool Manager