This is a walk-through of a typical Exchange 2010 installation. The slides include a preparation of the Schema (/PrepareSchema), configuration partition (/PrepareAD) and domain partition (/PrepareAllDomains).
Notice that the Schema Preparation should be made on the Schema Master FSMO role holder. You can determine this by using the netdom utility.
Once the Active Directory has been prepared, its time to turn your attention to the installation of Exchange 2010 server proper. There are a number of Server 2008 R2 pre-requisites that are required. These are mentioned in here. Once this has been done execute the setup.exe on the CD. Follow the next couple of steps as illustrated below.