Adding Server2008R2 DC to a Server2012Std Domain

Posted on 2014-02-11
Last Modified: 2014-02-11
Attempting to lower the Forest/Domain functional levels on a Server2012 DC, but when I run commands taken from:

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

Expert Comment

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

Expert Comment

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

Accepted Solution

Mahesh earned 167 total points
ID: 39851172
Set-AdForestMode -identity -forestmode Windows2008R2Forest

Set-AdDomainMode -identity -domainmode Windows2008R2Domain

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

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Assisted Solution

ktaczala earned 166 total points
ID: 39851177
also you need to use "Windows2008R2Forest" not "Windows2008Forest"
LVL 57

Assisted Solution

by:Mike Kline
Mike Kline earned 167 total points
ID: 39851179
identity is fine,

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



Author Closing Comment

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.
LVL 37

Expert Comment

ID: 39851243
You are right.

it does required to run from primary server

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