I have 2 servers running Windows Server 2003. 1 server is the primary domain controller with AD, DNS and DHCP. The other server is my email server with active directory.
I need to demote my primary domain controller to a file server and install a new server I just purchased as my primary domain controller running Server 2008 with DNS and DHCP. The email server should remain as is with no changes.
What detailed steps do I need to follow to make this transition smooth. Please provide details as I have never replaced domain controllers before. Thanks.