Over the past few weeks we have been migrating from our old SBS 2003 server DC to a new 2008 R2 server DC and we have just moved over the roles and tried to dcpromo the SBS server. When we try dcpromo we recieve the following error.
We have been following this guide: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2881-Migrate-Small-Business-Server-2003-to-Exchange-2010-and-Windows-2008-R2.html?sfQueryTermInfo=1+10+2003+2008+30+migrat
'The box indicating that this is the last domain controller for the domain is unchecked. However, no other Active Directory domain controllers for that domain can be contacted.
Do you wish to proceed anyway?
If you click Yes, any Active Directory changes that have been made on this domain controller will be lost'
Any help on this would be greatly appreciated.