SBS 2003 to SBS 2008 Migration - DC promotion error

I am doing a migration from SBS 2003 to SBS 2008. The 2003 server is completely patched, updated, etc. per the migration documents at http://technet.microsoft.com/en-us/library/cc546034.aspx. I have the answer file complete and correct and the SBS 2008 is reading it. Everything appears to be going fine and then I received this error on the SBS 2008:
fatal dcpromo _ join domain the server was not promoted to a domain controller

I can get to the 2008 desktop, so I ran dcpromo to see what the machine would do- it runs the wizard as if it is not a DC. The 2003 server shows the machine as a domain controller both in ADUC and in Sites and Services. Replication in all directions regarding this server will not work and there are not auto NTDS setttings for the 2008 box. I believe it is safe to assume that the migration is really screwed up now and I can't proceed with what I've got but any ideas on how to prevent this when I try again?
cberrymdAsked:
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cberrymdConnect With a Mentor Author Commented:
The "fix" for me was to ntdsutil remove the new DC from the domain, reinstall, and start the migration again. The second time around it simply worked.
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suppsawsCommented:
cberrymd,

btw, your old server has one NIC?
http://sbs.editme.com/sbs2008migration

suppsaws
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becjiCommented:
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