DCPROMO of a Server 2008R2 into a 2003 SBS domain keeps asking for adprep/forestprep

Hi Guys,

I've got an SBS2003 DCenviroment into which i've joined a new Server 2008 R2 server. I want to make this a domain controller and have ran adprep/forestprep and /domainprep and dcoprep on the 2003 SBS box with the 2008 CD and this completed successfully (plus if i try to run it again it just shows that it's already been done. When i run DCPROMO on the Server 2008 R2 box it says that the forestprep and/ or domainprep still needs to be run.
Any ideas ?
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NetexpertsAsked:
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Glen KnightCommented:
First thing is if it is 2008R2 then the commands you need to run in the SBS server are adprep32 as adprep from the 2008R2 DVD will not run.

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NetexpertsAuthor Commented:
I've downloaded the 32bit trial version onto the SBS box and adprep ran fine. Do i need to run the adprep32 anyway ?
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Glen KnightCommented:
There is no 32bit version if Windows 2008 R2 so you must run adprep32.

You need to run:

X:\support\adprep\adprep32  /domainprep
X:\support\adprep\adprep32  /domainprep /gpprep
X:\support\adprep\adprep32  /rodcprep

Where X is the drive the adprep32 is on
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NetexpertsAuthor Commented:
So i need to put in the server 2008 R2 64 bit DVD into the 32 bit SBS server and run the above on it ?
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Glen KnightCommented:
Correct.
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NetexpertsAuthor Commented:
Thanks. i'll try that and postback.
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NetexpertsAuthor Commented:
That's worked a treat. Had to run DCOPREP after but then it worked fine.

Many Thanks
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Windows Server 2008

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