We are not able to start the installation of SQL server 2008 r2 on WS 2012 due to compatibility issues in the very beginning on the installation wizard .
Environment:WS2012 - 2Node cluster, with physical DC, Quorum disk(Vdisk) created on N1 and DTC role configured on the cluster, and allocated LUN(Vdisk) and added in the cluster storage for SQL server installation.
Also, we tried slipstream(SP1) installation on these node, still no luck. Please find the below error.