Adding Server2008R2 DC to a Server2012Std Domain

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
LVL 2
paulrauschAsked:
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MaheshConnect With a Mentor ArchitectCommented:
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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ktaczalaCommented:
Why the -identity switch?  it's not in the links instructions.
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ktaczalaCommented:
also make sure you type in the FQDN suffix i.e. "contoso.com" or "contoso.local" not just "contoso"
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Making Bulk Changes to Active Directory

Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

 
ktaczalaConnect With a Mentor Commented:
also you need to use "Windows2008R2Forest" not "Windows2008Forest"
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Mike KlineConnect With a Mentor Commented:
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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paulrauschAuthor Commented:
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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MaheshArchitectCommented:
You are right.

it does required to run from primary server
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