I have two old 2003 DC, one named DC01 which is FSMO and one named DC02.
I want to upgrade the AD to 2012.
My plan:
Install two new AD servers (DC03 and DC04) with Windows Server 2012
Install Active Directory Services on them
Promote the servers
Check everything is replicated over to the new AD servers
Change DHCP and Servers to the new DNS servers.
Change RID, PDC, Infrastructure, Operations Master, Schema Master to DC03.
Change Global Catalog Server to DC03
Check the roles is on DC03 with netdom Query FSMO
Run DCPROMO on DC01 and DC02 to demote them from Global Catalog Server.
Raise function level from 2003 to 2012
Can any of you see a problem with this?
Regards Nicolai Pedersen.