move from 2003 to 2008 DC

Hi,

I currently have a 32bit 2003 DC. I have just installed 64 bit 2008 R2 on new server with the view to this replacing 2003 DC.
I didn't want to upgrade current 2003 DC as the box is unstable and old. The idea is to populate the new 2008 DC with the AD schema from 2003 DC then turn it off for good.
All user accounts, etc are stored on a san.
I am looking for advice on how to achieve this.

Tia
osxmanAsked:
Who is Participating?
 
JamesSenior Cloud Infrastructure EngineerCommented:
What you need to do first is to extend the Schema for the integration of Windows Server 2008. You do this by running Forest/Prep and Domain/Prep.

Once this is done you can then go about promoting the Windows Server 2008 as a Domain Controller by running DCPROMO. The Active Directory Database will then replicate to the Windows Server 2008, you can then add Roles such as DNS which will also replicate. With regard to DHCP you will have to move the DHCP Database. Please refer to the link below and this will explain how to move the DHCP database.

http://support.microsoft.com/kb/962355

You will also have to transfer the 5 FSMO Roles, The Schema Role, Domain Naming Master Role, The PDC Emulator Role, RID Master Role and finally the Infrastructure Role. Please refer to the link below and this will explain how to transfer the Roles.

http://support.microsoft.com/kb/324801

When you have all this done and you have migrated all the data over, you can then demote the old Domain Controller.
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honestman31Commented:
promote the new 2008 as  DC  Wait a day or two then take the 2003 offline , that's all
the waiting time it to make sure the replication is completed
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osxmanAuthor Commented:
"What you need to do first is to extend the Schema for the integration of Windows Server 2008. You do this by running Forest/Prep and Domain/Prep."

I guess I do this on the win 2003 DC?
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JamesSenior Cloud Infrastructure EngineerCommented:
This is correct!
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osxmanAuthor Commented:
Sorry can you explain this a little further. I ran adprep /forestprep on the 2003 DC and it starts going on about all existing win 2000 DC should be upgraded to SP1
anyway I press C to continue and it says that Forest-wide information has already been updated - adprep did not attempt to rerun this operation. Same for Domain prep


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osxmanAuthor Commented:
I might add that I installed 2008 server this morning and joined it to the domain. Do you think it has somehow done this automatically?
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JamesSenior Cloud Infrastructure EngineerCommented:
Is the Windows 2008 Server joined to the Domain already?
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JamesSenior Cloud Infrastructure EngineerCommented:
The next step would be to run DCPROMO and promote to a Domain Controller.
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osxmanAuthor Commented:
Yes, joined to it this morning. but haven't configured anything else on the server. I guess I just need to run DCPROMO then? and then take a look at the DCHP link u sent.
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osxmanAuthor Commented:
Cool

Thanks
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