I have a Windows 2000 server and I want to add a Windows 2008 Server server to the forest.

Do I add the Windows 2008 server to the domain before running DCPromo or do I leave it off the domain?


It does not matter. Since it saves time to DCPromo directly, do that.

MINOR CAVEAT: The SID of the Server 2008 install should be different than any of the existing machines. If you didn't clone this from another install (as in a virtualized environment), then you should be fine.

  • If I answered your question, please click the green checkmark next to the answer to indicate that the problem is resolved. Welcome to ServerFault! – Joel E Salas Apr 23 '12 at 19:36
  • Can't yet, you were too quick ;-). I will once I can – MissCoder87 Apr 23 '12 at 19:39
  • Thanks! Feel free to follow up if joining the DC doesn't work – Joel E Salas Apr 23 '12 at 19:46
  • 4
    Just an afterthought - doesn't the domain/forest need adprep'ing prior to adding a 2008 DC to a 2003 domain? – Chris McKeown Apr 23 '12 at 20:21
  • Yes. It does. Forestprep and Domainprep will both need to be ran against the 2003 server. – JohnThePro Apr 23 '12 at 22:24

I'll put this in as an answer since it is fairly important.

You'll need to prepare the forest using adprep before adding the new DC.

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