Exchange 2007 SP2 Setup fails if all DCs are running WS08 R2
Microsoft Exchange Team Blog has recently posted the following information:
“We have learned of and analyzed the problem where the Exchange 2007 SP2 installation can fail during the prerequisite check stage. The installation can fail for both the upgrade or for new installation of Exchange 2007 SP2.
In the Exchange Setup log you can see that setup is failing with the following error:
[ERROR] Cannot find at least one domain controller running Windows Server 2003 Service Pack 1 or later in domain ‘DC=DCName,DC=com,DC=DCName’. This could be the result of moving domain controller objects in Active Directory. Check that at least one domain controller running Windows Server 2003 Service Pack 1 or later is located in the ‘Domain Controllers’ organizational unit (OU) and rerun setup.
This can happen in the following scenarios:
* You are installing or upgrading to Exchange 2007 SP2 in an Active Directory forest that has only Windows Server 2008 R2 Domain Controllers,
OR
* You are installing or upgrading the Exchange 2007 SP2 in an Active Directory forest that has windows server 2008 R2 Domain Controllers as well Windows Server 2003 domain controllers that are not updated to at least Windows Server 2003 SP1.”
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