Adding another domain controller (2003 Std R2) to an SBS 2003 Domain

Posted on 2009-02-14
Last Modified: 2012-05-06
We just purchased a new server that I would like to make a secondary domain controller in our domain.  The original DC is running SBS 2003 SP2 (not R2).  When I try to DCPROMO the new server I get the following message during the AD install:

"The version of the Active Directory schema of the source forest is not compatible with the version of Active Directory on this computer."

I understand that I am supposed to run the "adprep" tool from Disc 2 of the Windows Server Std 2003 R2 installation set.  Am I supposed to run this on the new server or on the original domain controller?

If I am supposed to run it on the SBS machine, what are the implications of doing so?  Are there any serious problems that I might expect to run into when running this on an SBS box?
Question by:I_play_with_DNA
    LVL 95

    Accepted Solution

    No problems.  You run it on the SBS server.

    BUT, it would be foolish to do any major change without creating a backup first.  While I have never experienced or heard of a problem coming up, if you're the first, always good to have a backup!
    LVL 7

    Assisted Solution

    Run it on the SBS machine as it holds the schema that you wish to update.

    It'll update the AD schema so that it's accepting of an R2 server.

    Don't worry too much about implications, it simply adds some features into the Active Directory schema ("database") so that the R2 server has the required fields to store data in.

    LVL 21

    Assisted Solution

    Like it's said above. Make a system state backup of the SBS DC.

    Copy the tool from the disk #2 over to your SBS. Do not download it from MS.

    Just remember that the SBS will not allow the new DC to be a FSMO role holder.


    Featured Post

    6 Surprising Benefits of Threat Intelligence

    All sorts of threat intelligence is available on the web. Intelligence you can learn from, and use to anticipate and prepare for future attacks.

    Join & Write a Comment

    On July 14th 2015, Windows Server 2003 will become End of Support, leaving hundreds of thousands of servers around the world that still run this 12 year old operating system vulnerable and potentially out of compliance in many organisations around t…
    Learn about cloud computing and its benefits for small business owners.
    This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
    This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles from a Windows Server 2008 domain controller to a Windows Server 2012 domain controlle…

    734 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    24 Experts available now in Live!

    Get 1:1 Help Now