Windows 2008 R2

hi there expert:
i have one domaine controlor with 2008 32bits and i want  to migrate/transaction Active Directory 2008 32-bit to 64-bit?
is there any way is it compatible or not?
thnx
LVL 7
joenswAsked:
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Krzysztof PytkoSenior Active Directory EngineerCommented:
There is no possibility to do in-place upgrade from 32bit to 64bit at all. Howvere, it's also not recommended. If you have another box just make it as additional DC, transfer FSMO roles and decommission that 32bit DC. There is no problem running 32bit and 64bit DCs in an environment.

How to add additional DC into network, you can check on my blog at
http://kpytko.wordpress.com/2011/09/05/adding-additional-domain-controller/

Regards,
Krzysztof
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steforCommented:
You can install a new domain controller on Server 2008 x64, then demote the old domain controller to achive this.
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Kruno DžoićSystem EngineerCommented:
Add 64-bit server as backup AD, all data will be copied to him, and then remove 32-bit AD server

http://www.elmajdal.net/win2k8/Transferring_FSMO_Roles_in_Windows_Server_2008.aspx

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JohnGrunwellCommented:
Make sure you force a replication across before you demote the old 32bit.
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joenswAuthor Commented:
hi
should i prepare the forest an domain in active directory 2008 32bits
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steforCommented:
The schema should be no different between 32bit and 64bit.
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Krzysztof PytkoSenior Active Directory EngineerCommented:
Nope. Schema was extended when you first introduced your 2008 DC.
Now, just only prmote new 64bit server as additional DC.

Krzysztof
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joenswAuthor Commented:
hi
when i try to add a aditional DC 2008 R2 i get an error you have to use adprep /forestprep in win 2008 R2
but when i do it i get an erro that the win 2008 R2 is not an Domain controler
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Krzysztof PytkoSenior Active Directory EngineerCommented:
OK, so probably you added earlier 2008 R1 with SP2 ? In case that you want to add R2, yes you need to run adprep32 /forestprep and adprep32 /domainprep

check an article on my blog I posted earlier and follow it

Krzysztof
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joenswAuthor Commented:
hi
thnx experts for help
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