Migrate NT 4.0 domain to existing MIXED-mode AD

[Lanmonkey]

We have an existing Windows 2000 AD in mixed mode (2 Windows 2000 DCs and multiple NT 4.0 branch-based BDCs). We also have a separate Windows NT 4.0 domain which has two-way trusts with the AD (another company we've acquired). I basically need to consolidate the NT 4.0 domain with the existing AD domain, thus making it an OU. The problem here is that the target AD domain is in mixed mode and therefore I cannot use ADMT and NETDOM utilities. Upgrading all the BDCs to Windows 2000 and converting AD to native mode is not currently possible.
What would you guys do in this situation?

Thanks for you responses.

 

[GiaBetiu]

I see just one solution in this case: upgrade in place.
Gia Betiu
giabetiu@chello.nl
Computer Eng. CNE 4, CNE 5, soon MCSE2k

 

[Lanmonkey]

And what would happen if we upgrade in place? Will the DCPROMO allow us to create this NT 4.0 domain as a new tree in the AD forest or/and a new child domain within the existing tree?

If the above happens, how can I demolish this "temp" domain and move the objects into the other one if the destination domain is still in mixed mode?

 

[doomhamur]

Upgrade in place:

In the NT domain:
1. sync a BDC, verify it and unplug it from the network.
2. upgrade PDC to win2k and setup DNS first. (you have to see the forest before you can join it) Then run dcpromo. make sure you can join the forest as a tree or the tree as a domain. if you cant then your dns is not working properly (you could user ethereal to see if you are getting domain packet info form the forest).
3. once you have the DC setup join your bdc's to it.

This is a small outline of what to do. if you get the win2000 resource kit it will give more detailed steps. Doomhamur
Network Engineer
"Certifications? we dont need no stinking certifiaction."
yahoo IM handle: greater_vortex

 

[Lanmonkey]

Are you guys even reading what the post is? Why give trivial text-book answers that no one can benefit from? It is OK to not answer the post if you don't really know how to solve the issue, you know...

Please don't post unless you take time to READ the question, understand it and actually know a solution.