Per a Michael Niehaus post, you can minimize your issues with CM2012 RTM installations just by using the *correct* version of SQL Server.
If you are running SQL 2008 SP2, install CU9 from http://support.microsoft.com/kb/2673382/. If you are running SQL 2008 SP3, install CU4 from http://support.microsoft.com/kb/2673383/. If you are running SQL Server 2008 R2 SP1, use CU6 from http://support.microsoft.com/kb/2679367/. If you aren’t yet on the needed service pack levels, upgrade now, then install the cumulative updates
Read the full post: Trying to install ConfigMgr 2012 RTM? Make sure you have the right SQL…