Whilst ConfigMgr 2012 does not officially support the installation of Windows 10 via OSD it can still be used to deploy the OS.
Download the latest technical preview from the Microsoft website here. I will be installing the x64 release in this blog post.
Copy the install.wim file from the ISO's source folder.
Paste into your source location for OSD content.
In the ConfigMgr console go to the Software Library workspace. Under the Operating Systems>Operating Systems Images node, right click and choose 'Add Operating System Image'.
Browse to the location of the install.wim file in your content location folder. Click Next.
Enter a name for the OS image and click Next.
Click Next at the Summary screen.
Click Close to complete the wizard.
Right click the new image and Distribute Content.
Click Add and choose Distribution Point.
Select your Distribution Point to distribute the OS to. Click Ok and then click Next.
Ensure that the image distributes successfully. Keep an eye on the distmgr.log file or check the content status in the console.
Now it's time to create the Task Sequence to deploy the Windows 10 preview.
Right click the Task Sequence node and choose Create Task Sequence.
Choose 'Install an existing image package.' and click Next.
Enter a name for the Task Sequence and choose a boot image to use with the TS.
Select the Browse button to choose the Windows 10 package.
Choose the Windows 10 package and click Ok.
From the drop down menu select Windows 8.1 Pro and click Next.
Enter the Domain Join information and click Next.
Add your ConfigMgr package and any installation switches and click Next.
Since this will be a fresh installation no State Migration information is required therefore uncheck and click Next.
No updates will be installed for this build and no applications will be installed either so click through to the end of the wizard.
Click Close at the end of the wizard to complete.
Right click the new Task Sequence and choose Deploy.
Click the Browse button next to Collections. Select a Collection to deploy the Task Sequence to, in this instance 'All Unknown Computers'. Click Ok. Click Next.
Make the TS available to media and PXE and click Next.
Click through to the end of the wizard and click Close to complete.
Boot with PXE or boot media and click Next at the 'Welcome of the Task Sequence Wizard' window.
Select the Windows 10 Build 9926 Task Sequence and click Next.
The install.wim will being to download and install and the Task Sequence will progress.