Error when running adprep32  /rodcprep, trying to add a 2008 domain controller to a 2003 domain

Posted on 2011-03-04
Medium Priority
Last Modified: 2012-05-11
I'm trying to migrate a Small Business Server 2003 to Server 2008 domain.  The problem is when I run the adprep32 /rodcprep command as specified as the final step in Step 3 of this article: http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2881-Migrate-Small-Business-Server-2003-to-Exchange-2010-and-Windows-2008-R2.html

I get an error "Adprep could not contact a replica for partition..." which is described in detail here:
http://support.microsoft.com/kb/949257  I've also attached the AdPrep.log file for full details.  

So when I try to run DCPromo on my new Server 2008 PDC (it's not the PDC yet, but want it to be soon), I get an error saying that /rodcprep hasn't ran so there could be errors if I continue.  

Anyone ran into this or have any suggestions on how to help?  Can Dsmgmt be ran on server 2003 to help solve this?  Assuming it's a partition error. ADPrep.log
Question by:gemvision
  • 2
LVL 59

Accepted Solution

Darius Ghassem earned 2000 total points
ID: 35040886
You can move forward you just won't be able to run RODC servers this is not a requirment.

Where is your FSMO roles at right now? The error pertains to not being able to contact the infrastructre master role. Have you moved FSMO roles yet?

On server run netdom /query fsmo to see where you fsmo roles are being held

Author Comment

ID: 35040927
Right now all roles are on my SBS server, so haven't moved any roles and I'm running adprep32 from the SBS server from the 2008 CD.  So running that query, all 5 roles come back as my SBS server.

What potential problems would I run into if I continue with these errors?
LVL 59

Expert Comment

by:Darius Ghassem
ID: 35040945
You would not be able to run RODC servers which are Read-only Domain Controllers many techs like myself don't run this until we need to want to have RODC servers. RODC servers are not used much except for security measures in a non secure location

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