Microsoft has just updated the following KB Article:
e2e: Configuring Operating System Deployment in System Center 2012 Configuration Manager
Introduction:
Most support issues that affect Operating System Deployment (OSD) in System Center 2012 Configuration Manager stem from product misconfigurations. Although there are no simple guidelines to implement something as powerful and complex as OSD, this article describes the step-by-step process for configuring System Center 2012 Configuration Manager (ConfigMgr 2012) to capture an existing Windows image. This article also guides you through creating a Client Package and Task Sequence to deploy and install that image.
This article assumes that you have an existing environment that has a Configuration Manager 2012 site installed and also a primary site that is running Configuration Manager 2012. These steps can also be used together with a stand-alone primary site that is running Configuration Manager 2012. Additionally, this article requires that the Network Access Account and Boundaries are configured correctly, and that ConfigMgr client agents are installed on the clients.
Full details at:
http://support.microsoft.com/kb/2969096