1. Create a vm with 2 vcpus and 12gbs of ram. Install either 2k8 or 2k12.
2. Make sure that your vm has a static ip address and has AD configured
3. Start the installation. You won't have to worry about the sso db as in 5.1.
Notes: You have the choice to do a simple install (sso, inventory services and the vcenter server on the same machine) or a custom install (where you select the components individually).