Windows Server 2003 Active Directory Upgrade to 2008 R2 with multidomain structure

In an 2003 active directory environment where there are multiple domains
(two sub domains), how to realize the upgrade proccess to windows 2008 r2 active directory? Where to start from? Thanks.
vedyilmazAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Darius GhassemCommented:
You can technically start within any domain but I prefer to start in the root domain then work my way down to the child domains. You need to run adprep32 or adprep to prep your domain and forest for a Windows 2008 Server R2 to be added as we DC.

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/A_3644-Windows-2008-Server-R2-adprep-adprep32.html
0
bluemelnCommented:
I just upgraded three domains in a 20-domain forest. I found it easiest to follow the TechNet guide: http://technet.microsoft.com/en-us/library/cc731188(v=ws.10).aspx. It walks you through preparing your existing domain and performing the upgrade. It helps you plan what to do first. Are these two domains the only domains in the forest?

You first need to run adprep /forestprep (as an enterprise admin) to change the AD schema for the forest. Then you prepare each domain by running adprep /domainprep.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
vedyilmazAuthor Commented:
There is a root domain and two sub domains. I'll carefully read the documents you posted and try in an experimental environment first. Thanks for your suggestions.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft Legacy OS

From novice to tech pro — start learning today.