install Secondary DC

My PDC is window 2003
Now I install more secondary  on new Window 2008 SP@

WHen I install by dcpromo the error appear is :

to install a domain controller into this active Directory forest, you must first prepare the forest using adprep /forestprep
the adprep ultility is available on the window 2008 R2 installation media in \supporadprep folder
kasperprentowAsked:
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Gareth GudgerSolution ArchitectCommented:
Yep. You need to open a command prompt and run the ADPREP commands to extend the schema before it will even accept a 2008 domain controller.

Open a command prompt, navigate to that path on the 2008 R2 DVD, and run ADPREP /FORESTPREP and then ADPREP /DOMAINPREP, then ADPREP /DOMAIMPREP /GPPREP and lastly ADPREP /RODCPREP.

Give everything a good amount of time to replicate. 15 minutes.

Then retry adding your server again.

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Aditya AroraNetwork & Hardware Commented:
yes to add new server of new version of OS you need to run following

adprep /forestprep (in 2003 Server)

 adprep /domainprep /gpprep com (in 2003 Server)

adprep /rodcprep  

or you can refer the below youtube video for your reference.  

http://www.youtube.com/watch?v=hExhA0YZHSo


Thanks Aditya
kasperprentowAuthor Commented:
Hi Experts
Can you help to instruct me step by step how to
1, down grade PDC to Secondary and
2upgrade Secondary to Primary DC
Tks alot
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Gareth GudgerSolution ArchitectCommented:
There is no downgrade or upgrading like there were in NT days. Now you just move the FSMO roles from one server to another. You can do this through any of the tools.

For example open Active Directory Users and Computers on the new Domain Controller, right click on the name of your domain and from the context menu select "Operations Masters".

Under the tabs for RID, PDC and Infrastructure click the Change button. This will change the role to the new DC.

Also, one other Operations Master exists under Active Directory Domains and Trusts MMC. Right click the top level and select Operations Masters, then click change.

The last one is to move the Schema Master and this is more involved.
Here is a link: http://technet.microsoft.com/en-us/library/cc759254(v=ws.10).aspx
kasperprentowAuthor Commented:
I've requested that this question be deleted for the following reason:

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Gareth GudgerSolution ArchitectCommented:
An answer was provided.
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