So you can bring it back and promote it into an NT4 PDC perchance your upgrade to W2K goes badly. You'd then need to demote the NT4 PDC into a BDC as soon as possible.Ī good practice in your case would be to promote a third box into an NT4 BDC and then take it offline as you DCPROMO the W2K box. It would then act as a DC for your existing NT4 domain, and as a result your existing NT4 domain would become a W2K AD domain. You can demote the W2K box into a regular server, join it to the NT4 domain and then DCPROMO it. Would it be possible to demote the W2k to BDC and then add to NT4 domain? Then promote W2k to PDC and demote NT4 to BDC? How can you add a domain controller to a domain? Think about it! What would happen if I added the W2k server to the NT4 server's domain having both of them set up as a PDC? You can not have that W2K box replacing your NT4 DC. So you've created a brand new W2K AD domain by doing that, distinctly separate from the NT4 DC. while i have used this on more than one occassion without problem, i still cross my fingers when it is done.The w2k box already has AD installed and ready to go. after the dc is synched it can then be re-promoted to its original role. changing the reg value will force the system to think of itself as a bdc and allow it to rejoin the domain and become synched. a problem will exist wherein one dc (original pdc) comes back online but the netlogon service fails to start and thus it will not demote. there was one setting that would usually work, but i have not had this issue in so long, i cannot recall of the top my head what it was.Īs to clint's suggestion, i have used this value as a means of demoting a dc when two are seen in the domain. Playing with the view options can also be helpful. typically, i have found that if the pdc is unavailable, then srvmgr needs to be run locally from a dc before it will display the machine list. We've had this problem happen a number of times in our environment. i've used it before), i would try a much simpler approach. Before trying clint's suggestion (which is not necessarily a bad thing.
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