Hi Everyone,
Firstly I just wanted to say these forums are great. They have helped so much with my installation and management of Configuration Manager at my site.
Yesterday I upgraded from Configuration Manager 2012 SP1 (on Server 2008 R2) to Configuration Manager 2012 R2. I followed this guide on this website:
http://www.windows-noob.com/forums/index.php?/topic/8451-how-can-i-install-system-center-2012-r2-configuration-manager/
I used the actual release version instead of the Preview Release version in the guide above.
The installation went very smoothly just like the gui