This is the procedure I made:
Install Windows Server 2012 R2, update OS
Install MS SQL Server 2012 (with these settings: Windows Auth, set it to default instance name which is MSSQLSERVER, credentials used is the domain admin account to avoid any permission issue, specified minimum and maximum memory, enabled TCP/IP used for ConfigMgr machine)
Installed SCCM 2012 R2, followed the guide as indicated in the pinned discussion here for Release Candidate)
and since the second step is adding SUP and WSUS, I followed that procdure as well.
The error I'm getting is this:
http://eskonr.com/2013/06/wsus-role-failed-on-windows-server-2012-with-error-the-operation-cannot-be-completed-because-the-server-that-you-specified-requires-a-restart/
Here's the weird part. It says that I need to restart after that attempt to add the WSUS role. After I restart the server it still doesnt add the WSUS role. So what I did, was to attempt to add the WSUS role again, eventhough the installation failed prompted, when I click on Tools and checked, the WSUS component is there and when I executed this, the WSUS wizard did run.
So my next step was cancelled the WSUS wizard and instead add the SUP role for it to trigger the WSUS setup wizard, right? after setting up everything and showed no error, I decided to reboot the server just to ensure if everything's ok, unfortunately after the reboot, the WSUS disappeared again. I checked IIS the WSUS site was already there but there was no path since the WSUS role disappeared.
Regards,
Jeff