We have 800 users on exchange 2003:
root domain: abc.local
child domain: abc.domain.local
We have Exchange 2003 in the child domain only - abc.domain.local
We want to upgrade/transition to Exchange 2010 in same AD site and for only the child domain user mailboxes.
What setup / commands do we need to run (prepare ad / schema /legacypermissions etc) in each domain above. Please list step by step in correct order of execution.