The built-in migration tool in System Center 2012 Configuration Manager is a great tool to help you in the process of migrating from Configuration Manager 2007 to System Center 2012 Configuration Manager. It can migrate all your content like packages, drivers, Task Sequences, OS images etc. But if you’ve integrated the Microsoft Deployment Toolkit 2010 Update 1(MDT) in your current environment, the Task Sequence might have steps that can’t be migrated to the new version.
To migrate an MDT 2010 Task Sequence, you need to integrate MDT 2012 with the ConfigMgr 2012 site. But the wizard can only migrate MDT 2012 Task Sequences, so you need to upgrade the MDT 2010 installation first.
To migrate a MDT 2010 Task Sequence to a new ConfigMgr 2012 Site the following steps must be performed:
- Update the ConfigMgr 2007 MDT 2010 to MDT 2012
- Migrate the old MDT 2010 Task Sequence to MDT2012 (In the ConfigMgr 2007 environment)
- Install and Integrate MDT 2012 on the ConfigMgr 2012 Site
- Migrate the Task Sequence using the wizard
This is the process for the current release (ConfigMgr 2012 RC2 and MDT 2012 RC1), but I expect this process to be valid on the final release as well.