Adding windows server 2012 r2 to windows 2000/windows 2003 domain

I am planning to do it this weekend. We got a domain with a domain controller that runs Windows 2000 and a file server that runs 2003. I am planning to add windows 2012 r2 to the domain and then promote it to domain controller and take the 2000 out. Any problems I should be expecting? Any advice? Thank you
CubbybulinAsked:
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Cliff GaliherCommented:
You can't. So yes, that's a big problem. 2012 cannot be a DC on a network that still has 2000 DCs. Or is even still at the 2000 functional levels. So you'll have to remove the 2000 DCs, raise both forest and domain functional levels to 2003 native, and then (and only then) will the 2012 server succeed in adding as a DC.
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becraigCommented:
Here is a very good step by step:
http://blogs.technet.com/b/canitpro/archive/2013/05/05/step-by-step-adding-a-windows-server-2012-domain-controller-to-an-existing-windows-2003-network.aspx

I would suggest you move the roles from the 2000 server and decomm then introduce the 2012 server.
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CubbybulinAuthor Commented:
thank you - very good guide. I am only confused on the first step. How do I raise both forest and domain levels to 2003? (sorry, its been a while since i done anything like this)
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Cliff GaliherCommented:
You can't while a 2000 DC is on the network.
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becraigCommented:
To raise the forest functional level
    Open Active Directory Domains and Trusts.
    In the console tree, right-click the Active Directory Domains and Trusts node, and then click Raise Forest Functional Level.
    In Select an available forest functional level, click Windows Server 2003, and then click Raise.

To raise the domain functional level
    Open Active Directory Domains and Trusts.
    In the console tree, right-click the domain for which you want to raise functionality, and then click Raise Domain Functional Level.
    In Select an available domain functional level, do one of the following:
        To raise the domain functional level to Windows 2000 native, click Windows 2000 native, and then click Raise.
        To raise domain functional level to Windows Server 2003, click Windows Server 2003, and then click Raise

As indicated in my earlier post:
I would suggest you move the roles from the 2000 server and decomm then introduce the 2012 server.
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CubbybulinAuthor Commented:
ok so first I install active directory on 2003  or first I take out windows 2000?
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Cliff GaliherCommented:
If you don't have a 2003/2008/2008R2 DC already, you'll need to introduce one before removing the 2000 server if you want to preserve your existing AD environment.
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CubbybulinAuthor Commented:
I dont have one yet - so i will have to make my 2003 the new DC, right? How do i do that? just by installing AD?
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Cliff GaliherCommented:
Yes. But be careful. Some applications don't like the server becoming a DC. Exchange Js a good example. You can't promote or demote a server already running exchange. It breaks everything. It may be worth your time to introduce a new server just for this migration.
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CubbybulinAuthor Commented:
thank you - we don't have exchange running on any machines. I guess worst case I will have to start from scratch, but we only have about 10 users.
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