This is very frustrating, they have three domains, root and two child domains. There is a global catalog in one of the child domains, keep getting this error, I have heard that the root domain needs to have a global catalog as well. I am stumped. Prepare Domain Progress ......................... FAILED Active Directory operation failed on ""DC in root.domain"" error is not retriable. Additional information: The specified user does not exist. Active directory response: 00000525: NameErr: DSID-031A0F80, problem 2001 (NO_OB JECT), data 0, best match of:

Does anyone know if the root domain had to have a global catalog? Thanks,

I have the same problem only with one Parent and one Child. Did you figure out how to fix this?

Doesn't anyone have a solution for this?! It has had me stopped dead for two weeks now.EdEd Bell - Specialist, Network Services, Convergys

Given that I ended up essentially rebuilding my forest from the root up I don't know if I found"the" solution to this or not. But what ultimately fixed this was: I had to run the Exchange "/pd" on a child DC/GC in each domain, while logged on as an EA. I can say, however, that ALL of my DC's were GC's through out this entire ordeal, so I wasn't a GC issue. EdEd Bell - Specialist, Network Services, Convergys

Ed, Exchange 2K7 requires at least oneGC in the root domain as well as at least oneGC in each child domain where Exchange is to be installed.

Ed, Exchange 2K7 requires at least oneGC in the root domain as well as at least oneGC in each child domain where Exchange is to be installed.

Right, I understood that and I had that -- ALL of my DC's are GC's. So that wasn't the problem. EdEd Bell - Specialist, Network Services, Convergys

Hi,I faced the same Problem and what i did ,i just add the Exchange Servers USG to the Manage Auditing and Security Log Policy for the child DC policyDomain Controller Security Policy\local Policies\User Rights Assignment\Manage Auditing and Security LogMuath Deebmuath@ex-consult.commdeeb

try to add the child domain - Exchange Install Domain Servers group into the root domain Exchange Server group.regards, Han Seen.

What command did you run? Did you run: setup.com /PrepareAllDomains I like run all the 'prepare' commands separately so I can be sure which is failing. What environment are you coming from? 2003 - 2007?

What command did you run? Did you run: setup.com /PrepareAllDomains

What command did you run? Did you run: setup.com /PrepareAllDomains