Microsoft have updated their Active Directory Forest Recovery whitepaper to reference Windows Server 2008 R2.
Hopefully nobody every has to go through a forest recovery – but just in case the day ever arises – you should practice a forest recovery regularly; because you do not want to be learning how to do this on the fly with the Director of your organisation watching your every move as his entire organisation cannot work.
Note: please ensure you have the latest version of the “Planning for Active Directory Forest Recovery paper” which was recently updated and then quickly republished to correct an error in the procedures for re-installing DNS.
The error is also covered in KB 975654
Download updated 18/03/2010