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cannot add a 2008 R2 as a DC on my domain

Posted on 2010-09-10
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Last Modified: 2012-05-10
cannot add a 2008 R2 as a DC on my domain I have 2 DC's 1 is a 2k3 R2 standard sp2 x32 and a 2k8 standard (non R2) x64 sp2, I'm trying to add a 2k8 R2 as a DC but after addind the ADDS role DCpromo error reads to run adprep/forestprep. I ran adprep fine on both the 2k2 and the 2k8 non R2, but the 2k8R2 fails because the server is not a domain controller, but I cant make it a DC because DCpromo is waiting for adprep/forestprep  
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Question by:MFRMLS_IT
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Expert Comment

by:Lazarus
ID: 33649171
Did you run:
ADPREP /forestprep
ADPREP /domainprep
adprep /rodcprep
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Author Comment

by:MFRMLS_IT
ID: 33649205
I ran ADPREP /forestprep
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by:Lazarus
ID: 33649227
You need to runn all of the above not just forestprep
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Expert Comment

by:Lazarus
ID: 33649248
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Expert Comment

by:FDiskWizard
ID: 33649431
Domain admins may not have the needed permissions - think delegation...
See this for details:
http://support.microsoft.com/kb/232070
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Author Comment

by:MFRMLS_IT
ID: 33649597
I'm not so sure about  the "all the above" as an answer especially the "adprep /rodcprep" since i'm not setting up a Read Only DC and "ADPREP /domainprep" has to be run after ADPREP /forestprep has been run.  

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Expert Comment

by:Lazarus
ID: 33649760
Even if you are not setting up RDOC, you need to run it, and yes, the order in which I gave them is the order in which you run them:
ADPREP /forestprep
ADPREP /domainprep
ADPREP /rodcprep
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Expert Comment

by:gs121
ID: 33650223
Not sure if the above comments take into account OS type (32 or 64 Bit).....

You should only have to run ADPREP /forest once on a forest.  Not for each domain in the forest.
Just run it on the Root domain once, and the forest is done.  ( IF YOU ONLY HAVE 32 BIT os dcs use adprep32)

adprep /domainprep needs to run on each domain.  you can run the 32 bit version if you do not have A 64 BIT os dc.  The adprep or adprep32 should be on the schema master for the forest.
ADPREP32 /DOMAINPREP

You should be running adprep on a domain controller.
If I understand you, you are trying to run adprep /domainprep on a non DC?
Run it on a DC in the domain, if the domain does not have a 2008 DC, run the adprep32 version of the command on a 32 bit os server (2003 or 2008 (non 64 bit).

The adprep or adprep32 should be on the schema master and then on infrastructure master for each domain.  If it 64 bit OS use adprep, or use ADPREP32 for a 32 bit os DC.

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Expert Comment

by:Darius Ghassem
ID: 33650588
You need to to run adprep32 /forest on your schema master and adprep /domainprep on your infrastructure master.

Read article below

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Windows_Server_2008/A_3644-Windows-2008-Server-R2-adprep-adprep32.html
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by:Lazarus
ID: 33650659
MFRMLS_IT,   QS121 is correct in what he's saying there. I should have added that myself, but somethng I tend to think certain things are obvious when they are not.  As well running the RODCPREP is not a must but should be done. It will prep the domain for a possible RODC even if you do never use it.
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Accepted Solution

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Darius Ghassem earned 500 total points
ID: 33650694
@gs121

Sorry didn't mean to repeat what you said I must have read over your post but the article I posted is a pretty good one to read over still.

@MFRMLS_IT

To find out what DCs hold these roles run the below command

netdom query fsmo
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Author Closing Comment

by:MFRMLS_IT
ID: 33789001
this is not a solution but I need to close this thanks everyone for their imput
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