We have Exchange 2010 installed with a DAG in one location and then a stand alone box in another. I was going to upgrade the standalone box first but it gives the following error:
"Setup needs to contact the AD schema master but this computer is not in the same AD site as the schema master"
"Setup encountered a problem while validating the status of Active Directory. Exchange organizational level objects have not been created..."
I see some articles that you have to go and run the domain/schema prep things on the DC with the master roles but does anyone have some clear documentation about all the steps needed just to get Exchange 2010 SP1 on our mail servers?