Server 2008 Core RODC Requires a 2008 PDC

If you’re trying to install a Server 2008 RODC and you’re getting this error:

A read-only domain controller cannot be installed at this time because default domain groups could not be created. The error was: Unable to contact PDC in domain .

… don’t forget that your PDC role must be held by a machine running Server 2008. Open up ADUC on a 2008 box and transfer the PDC role to the server and you should have better luck.


Recent content I've written for you—just for you!— to enjoy while you're here.


Quick commentary and links to other sources you'll find interesting. I promise.


Some personal background, links to related projects, and other ways to connect.

Hi there. My name is Tom Pacyk and this is my small home on the web. I love the intersection of design, technology, and communication, which is a combination that led me to a career in sales and marketing roles at places like Zoom and ServiceNow. They're a bit old now, but I also had the opportunity to publish a couple of books along the way.

Portland, Oregon is home for me, my wife Beth, and our three kids, but I'm actually a Midwestern transplant—I grew up in the Chicago suburbs and went to school at Purdue and Illinois. When I find some free time I'm probably going to concerts, rooting for the Portland Timbers, or working on my Sunshine Burn Photography project.