Operating System Deployment and 2003 R2 Follow-up
If you try the technique below on an install of Windows Server 2003 with Service Pack 2 (sp2), it fails. I don’t remember the exact error, but it translates to the wrong required sp level. It’s simple fix though as detailed here: http://blog.stealthpuppy.com/windows/windows-2003-r2-and-integrated-service-pack-2.