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SBS 2008 Migration to Windows 2012 Essentials

Posted on 2014-02-04
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Last Modified: 2014-02-13
Hello,
I have a new VMware ESXi 5.5 host that I am creating a new Windows 2012 Essentials virtual server on.  I am migrating from a Windows SBS 2008 server to the new Windows 2012 Essentials server but I am running into a problem when entering the domain information on the destination server.  The error I get is "Your full domain name is not correct or reachable."  I am able to ping the IP and FQDN of the source server from the destination server and I am able to ping the destination server IP address from the source server.

Can someone help me?
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Question by:blkfoot
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by:Jeffrey Kane - TechSoEasy
ID: 39834583
Have you followed ALL of the steps outlined in the migration preparation documentation:
http://technet.microsoft.com/en-us/library/jj200165.aspx ??

Is DHCP running on your SBS 2008?

Jeff
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blkfoot earned 0 total points
ID: 39835734
Thanks for the reply, Jeff.  Yes, I did follow all of the steps in that doc and no DHCP isn't running on the SBS 2008 server.  

The fix ended up being DNS on the source server.  After running DCDIAG and having it fail trying to resolve the GUID of the source server in the _msdcs folder I FINALLY found a comment that outlined the correct way to fix that problem.

Rename nelogon.dnb and netlogon.dns
net stop netlogon
ipconfig /flushdns
ipconfig /registerdns
net start netlogon
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by:blkfoot
ID: 39846811
Found the resolution  FINALLY in a comment on a post.
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by:Jeffrey Kane - TechSoEasy
ID: 39851864
Just curious -- the SBS BPA didn't pick up the DNS error on the source server?
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by:blkfoot
ID: 39853551
It did and when I followed the KB to resolve the DNS issue it had me remove the _msdcs folders which then created this issue when it came up that it couldn't find the GUID.  I basically chased the DNS tail for awhile with different KBs until I came across the correct way to recreate the _msdcs folders.  After I was able to enter the domain on the Essentials server it did also prompt me at that time that there was a DNS issue but since I'd been down that road already I bypassed and finished the migration.

I'm a little disappointed in Microsoft on this one.  I feel like they identified the DNS problem but then created a different problem by resolving the first problem.
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by:Jeffrey Kane - TechSoEasy
ID: 39857286
It doesn't make sense that there would be instructions to REMOVE the _msdcs zone completely without putting it back.  Often, I've found that it is in the wrong location (nested inside the default domain's forward lookup zone rather than as a separate forward lookup zone -- this occurs when the domain has been upgraded from older systems).

Usually, the BPA leads you to this article:
http://technet.microsoft.com/en-us/library/ff807395(WS.10).aspx

Which describes how to recreate it.

Anyhow, glad you're moving forward.

Jeff
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With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

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