Installing Hyper-V on Windows Server 2008 is just like installing any other server role. Use the Server Manager, or the command-line version, ServerManagerCmd.exe, on full Windows Server 2008. Or use OCSetup.exe on Server Core.
Installing On Windows Server Core
To install the Hyper-V role on Server Core, first complete the normal installation and configuration of Windows Server 2008 Server Core, as described in Chapter 9. Make sure that you enable remote administration, because you have no way to directly manage or create virtual machines on Server Core—the Hyper-V Management Console won’t run on Server Core.
When you’ve completed the base operating system configuration, use the following commands to add the Hyper-V role:
bcdedit /set ...