QUESTION POSED ON: 09 January 2004
I'm running a Win2000 native AD with 2 DCs (DC1 and DC2) with Exchange 2000.
I want to upgrade to Win2003, so I moved all FSMO roles to DC1, demoted DC2 and did the /forestprep and /domainprep. Then I did an in-place upgrade of DC1 that seemed to go fine. After that I did a clean reinstall of DC2 and ran DCpromo. DCpromo did some stuff, then replicated a batch (approx 1500 objects) and begun replicating a second batch (approx 8500 objects.) However, when it hit 4500 objects I got this error: "...could not replicate because of an active directory mismatch between the servers involved."
In the DC2 directory eventlog (which dcpromo has created) I got approximately 45 yellows saying: "Internal event: The following schema class has a superclass that is not valid". Several of these seems to be exchange related.
Class identifier:
259205885
Class name:
msExchPublicMDB
Superclass identifier:
259205882.
Everything seems to run fine and dcdiag reports that all is well. What can I do to remedy this mismatch?
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