Cross posted from PTS Blogs http://blogs.technet.com/b/ptsblog/archive/2011/03/02/using-sccm-r3-pre-stage-media-to-prestage-os-deployments.aspx
In this post I’ll demonstrate how to use System Center Configuration Manager 2007 R3 to create prestaged media, and then prestaging the operating system (OS) image on a fresh hardware using a Task Sequence. Afterwards, we will install the operating system using the prestaged OS media.
This process will create an output WIM file under the location you specified in the Wizard.
Once the WIM file is created, next step is to create an OS Image under Operating System Deployment node.
%SystemRoot%\system32\bootsect.exe /nt60 %OSPartition%
In Part 3, we created a Task Sequence to prestage an OS Image on a fresh machine. Now in this part we’ll apply an operating system to that machine by using the prestaged media on the disk. By just adding a Condition we can skip the OS Image download process. Prestaged media on creation will set _SMSTSMediaType = OEMmedia and we can use this variable as a condition to be checked before partitioning the disk and downloading OS Image from the distribution point.
This is all you need to change in the Task Sequence used to deploy Operating System to new hardware (with Prestaged OS Image) and it will not download OS Image from the network!
Great guide. I would add a cleanup step otherwise you will endup with the prestage garbage on the disk (disk label, folders) It is a pitty it is not cleaned up automatically.