I'm currently installing a new Windows 2012 R2 Essentials Server and all I would like to do is make the new Server the new domain controller and keep the internal domain name to save time taking client machines out of the domain and adding them back in again.
Not worried about migrating any other SBS 2011 features otherwise such as Exchange 2010 as I'm moving them onto Office 365 Hosted Exchange.
The technet articles seem to be a bit hazy as it mentions using a migration tool which doesn't exisit on the 2012 R2 DVD.
I've gone ahead and installed 2012 R2 Essentials on the new box and joined it to the existing SBS domain so far.
My question is do I need to uninstall Exchange 2010 from the old SBS still? and should it be just a case of moving the FSMO roles onto the newly installed 2012 R2 essentials Server and DCPROMO the old SBS once I'm ready?