promo server 2013 as secondary domain controller

Hi All

          I have a single DC with server 2003 enterprise, and i want to add one more server 2012 R2 Std as secondary DC, any step i need to do ? server 2003 need to rise to native  mode and domain & forest functional level also need to arise to window server 2003 ?

Keith
piaakitAsked:
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Seth SimmonsSr. Systems AdministratorCommented:
yes, you need to raise the domain/forest functional level to 2003 before promoting a 2012 domain controller
here is a guide that will help through the process

Introducing the first Windows Server 2012 Domain Controller
http://blogs.technet.com/b/askpfeplat/archive/2012/09/03/introducing-the-first-windows-server-2012-domain-controller.aspx

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DrDave242Senior Support EngineerCommented:
You should also be aware of this potential issue and install the applicable hotfix on the 2012 R2 DC.
piaakitAuthor Commented:
Will give it a try tomorrow, as what I only need to do is to raise EFL to 2003 on the current server 2003 dc and I can start to promo second dc in server 2012 r2 std
piaakitAuthor Commented:
any idea how to resolve this ? I,m getting this when I promoting my server 2012 server

1
DrDave242Senior Support EngineerCommented:
Is test.kit.com the correct FQDN of your existing DC? If so, is there a firewall running on that DC that could be interfering? Firewalls are a very common cause of "RPC server unavailable" errors, though not the only possible cause.

The adprep.log file mentioned in the error may provide some useful info, or it may simply show "RPC server unavailable."
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Windows Server 2012

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