MDT handoff to SCCM

I will start by saying this is not in any of the best practices books but it works well and is used for certain scenarios.

Sometimes when I get to a customer they have MDT setup and working for OSD but someone higher up have decided that they need ConfigMgr to manage clients going forward. Don’t get me wrong I’m all for using ConfigMgr to manage clients but that being said not everyone finds ConfigMgr the easiest or most understandable platform to use. So the question then arises “Could we still use MDT to deploy the machines and then ConfigMgr to manage them?” and of course the answer is YES!

So how do we accomplish this? There are two ways and I will describe both but only show one.

The first way of doing it by using the excellent startup script created by Jason Sandys (found here http://blog.configmgrftw.com/configmgr-client-startup-script/) it is easy to setup and only requires a small startup GPO and a file share. The upside to using this is that if someone for some reason didn’t get the agent during initial setup or someone uninstalled it from a client that is targeted by the GPO the client will get reinstalled. Jason has also managed to add some repair functions to it. So the downside then is that when using a GPO the client has to actually read the GPO and for that work the client has to be a member of the domain so workgroup computers are out.

The second way is what we are going to focus on for the rest of this post. That way is to install it during OSD in MDT as an application. The upside to doing it this way is, as soon as the deployment is done the client is also installed regardless of if the client joins a domain or not. Another upside to doing it this way instead of with a GPO is that if the client restarts at any point during deployment and the GPO is enabled the client will be installed during OSD possibly messing around while you are doing other installations or configuration steps.

So how do I do this? Well first off we need to create an application in MDT then we link that application into our sequence.

Step 1 – Creating the application

Create a folder named “CMAgent” so we have something to work with. Inside that create another folder called “Source”. Next to the Source folder place the script file and the xml which you download a bit further down in the post. In the Source folder you copy the client installation files from your site server in \\<your site server>\sms_<sitecode>\Client.

You should then have a folder that looks like this

Folder

Now we import that into MDT. So you give the application a name, point to your source folder and set a command line. For name I prefer Install – CCM Agent so I can easily see what the application does by just looking at the name. For command line you should use the following

PowerShell.exe –ExecutionPolicy ByPass –File Install-Application.ps1

If you open the application when its done it should look like this

Application

Step 2 – Adding it to the Task Sequence

The next bit is to add it to the sequence in the correct spot to avoid it being installed and then messing with your deployment. So open your sequence go down all the way to the end and mark the step called Apply Local GPO Package, Click Add at the top and Create a group. Now name the group so you know what it does, either Custom Steps or as in this case I named it Custom Handoff. In that group we add a step for Install application. Change the step to install a single application and point to your newly imported application.

The sequence should then look something like this

Sequence

Step 3 – Customizing the agent installation

The last thing you need to do is change some settings to point the agent to your specific environment. So open up your deploymentshare folder and browse to Applications\Install – CCM Agent. Use notepad to edit the settings.xml file and change the Installswitch section of the file. Below is a sample of how it can look, make sure to change it to suit your server name and infrastructure.

settings

Your all set! Next time you image a computer it will then have the CCM agent installed.

Link to download the script is here http://bit.ly/1TAczuB

Happy deploying!

/Peter

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