I am try to install Exchange 2010 on a new 2008 server that I joined and promoted as a DC in a SBS 2003 Environment (migration).
When I run the following commands on the 2008 R2 server they both fail.
•Run D:\setup /PrepareLegacyExchangePermissions - Say that the Forest Functional Level is not server 2003 native or later.
I did a domain prep and a Forest prep before I promoted the new 2008 R2 server but I had some prelication issues (the older server was not replicating to the new server). I resolved this issue now.
Should I re-run the forestprep command ?
•Run D:\setup /PrepareSchema - FAILED