How to Add a Server 2008 R2 Domain Controller (DC) to a Server 2008 Domain
Yes, Windows Server 2008 R2 DC’s are allowed to be on Server 2008 (R1) based domains as long as you do NOT raise the Domain/Forest Functionality Level. Instructions: Below is the process: Install Server 2008 R2 on some hardware, install all service packs and hot fixes Join the new R2 Read more…