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Isolated child domain

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by beldin32 1 view

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Basically the scenario is this. We had a parent/child domain structure. Our SQL system runs on the child domain. Just 2 domains

Through various problems (burglary/fire) we have lost the parent domain servers and backups. The child domain server was in a seperate area and was missed.

Now my problem comes in that I want to recreate the domain structure without having to reformat the child DC. I can recreate the parent domain with no real problems, however:

I cannot transfer FSMO roles: Schema Master or Domain Naming master to the child domain as the Admin of the child domain was not a member of the Enterprise Admins. Thus insufficient rights.

I have tried in NTDSUTIL to set the credentials to the old parent domain whilst connected to the child DC to no avail.

By the way this Child DC is a Global Catalog server for the domain.

What i need to be able to do is either remove all references to the old Parent and set the Child domain as its own seperate Forest/tree.

Or

Move the child domain into a new forest

Or

DCpromo the child domain (currently not possible as Parent domain is not contactable) and then recreate the child domain.

Any suggestions at resolving this issue please.

Thanks

2 replies

by djahnz

This is probably not something you want to hear, but your best bet is to just back up the child server and start from scratch on the whole thing. It will be a pain for sure, but its really the only good way to fix the problem.

Just my two cents...

by beldin32

Is it possible to destroy AD on the machine without the rest going? Ie do the same function as dcpromo but manually ?

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