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Adding Server2008R2 DC to a Server2012Std Domain

Posted on 2014-02-11
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Attempting to lower the Forest/Domain functional levels on a Server2012 DC, but when I run commands taken from:
http://techguyvijay.blogspot.com/2012/07/downgrade-forest-functional-level-or.html

It errors out giving me the attached image.
Any ideas?
Error.JPG
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Question by:paulrausch
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7 Comments
 
LVL 12

Expert Comment

by:ktaczala
ID: 39851166
Why the -identity switch?  it's not in the links instructions.
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LVL 12

Expert Comment

by:ktaczala
ID: 39851171
also make sure you type in the FQDN suffix i.e. "contoso.com" or "contoso.local" not just "contoso"
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LVL 37

Accepted Solution

by:
Mahesh earned 668 total points
ID: 39851172
Set-AdForestMode -identity contoso.com -forestmode Windows2008R2Forest

Set-AdDomainMode -identity contoso.com -domainmode Windows2008R2Domain

http://support.microsoft.com/kb/2753560

Make sure that you are running above commands from elevated active directory powershell module on 2012 DC with enterprise and domain admins account in forest root domain

Mahesh
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LVL 12

Assisted Solution

by:ktaczala
ktaczala earned 664 total points
ID: 39851177
also you need to use "Windows2008R2Forest" not "Windows2008Forest"
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LVL 57

Assisted Solution

by:Mike Kline
Mike Kline earned 668 total points
ID: 39851179
identity is fine, http://blogs.technet.com/b/infratalks/archive/2012/12/11/step-by-step-guide-to-lower-active-directory-functional-level.aspx

When it is saying resource unavialalbe, is that referring to one of your DCs?

Thanks

Mike
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LVL 2

Author Closing Comment

by:paulrausch
ID: 39851208
All of you had correct answers, but the problem was I was attempting to change levels on a secondary DC. Apparently it didnt like that. When running commands from the primary, it went through without any problems.
Thanks for the prompt responses.
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LVL 37

Expert Comment

by:Mahesh
ID: 39851243
You are right.

it does required to run from primary server
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