If this domain controller isn't doing anything but then it is really
very simple, and not any different than a 2000 -> 2003 upgrade:

 a) adprep to get the AD schema up-to-date
 b) dcpromo the 2008 box to make it a DC
 c) transfer FSMO roles to 2008 box
 d) shut down 2003 DC

Burian, Matthew J. (mjb) wrote:
> All,
> 
> I am currently in the process of planning the migration of a primary
> domain controller running Windows Server 2003 R2 to Windows Server
> 2008.  The 2003 server is running on hardware that is going to be
> retired, and the 2008 server will be installed on new hardware.  I
> need to get all of the AD services and data up and running on the 2008
> box so that I can pull the 2003 box out and the 2008 will take over
> with as little downtime as possible.
> 
> Has anyone had experience doing this recently and could share some
> techniques that worked well?  In theory, I was thinking that I would
> leave the 2003 server running, install the 2008 server and connect it
> to the domain as a member server, then transfer all of the AD/DNS data
> to the 2008 box and promote it to a DC.  However, I am not sure of the
> best way to accomplish this task.  Any input would be appreciated.
> Thanks!

-- 

Phil Brutsche
[email protected]

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