SBS 2008 Installation failure

During an OEM installation of SBS 2008 the installation failed with a message "DCPROMO failed, server was not promoted to a domain controller" the screen presenting the failure message indicated that the installation would need to be restarted and the original installation location reformatted.   The SBS 2008 server was disconnected from the LAN after it started the installation and before the failure message was displayed.   Does the SBS 2008 need to be connected to the LAN in order to promote itself to a domain controller?
-thanks Ron.
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Rob WilliamsConnect With a Mentor Commented:
It doesn't have to be connected to your current network or have a working Internet connection, for that matter even a standalone switch will work, though a router with a LAN IP is preferred, but as others have stated it does need a network connection.

I am assuming this is a clean install and not a migration?
BxozConnect With a Mentor Commented:
Yes he need to check if there are other DC on the domain so he need the LAN connexion
Larry Struckmeyer MVPCommented:
Yes, the installation is scripted to look for the router and adjust the ip's accordingly.
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