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server 2008 Domain stuck Upgrading Forest to 2012 R2

I'm trying to add a 2012 R2 domain controller to a 2008 single Forest, single Domain. The new domain controller is on a satellite site from the DC holding the Schema Master. I started the upgrade on Thursday and I have come in this morning, Monday and the new domain controller is still showing the "Upgrading Forest" dialog box.
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Jobin Johny

Hi,

What is the current forest functional level ?

Also please check the preferred DNS server address is pointing 2008 server.
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ASKER

I've just checked these and
Forest Functional Level: Server 2008
Domain Functional Level: Server 2008

DNS on new DC is pointing to a local DC & DNS server. I can change it to point to the PDC & Schema Master which is on the remote site via a VPN.  Both of these older servers are Windows Server 2008.
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Are there are processes running on this machine still? Have you checked the logs on the 2012 DC?

Also if you run netdom query dc

Do you see the new DC in the list?

In Sites and Services do you see the new DC created?

Will.
New DC has not yet appeared. I suspect this is because the DCPromo dialog is still trying to upgrade the Forest before it tries to add this new DC.

New DC has been added to domain but NetDOM Query DC does not show new Domain controller.

The AD logs on the Schema Master report adding a lot of new entries, but this ceased some time on Friday with no further log entries that would seem relevant to upgrading the forest.

DNS entries in _msdcs still only refer to pre-existing domain controllers.

All this would seem logical to me until the Forest has been upgraded and that does not seem to have happened yet
.
SOLUTION
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Will Szymkowski
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Thanks guys. I'll take a look at these two options overnight when I can restart servers as I need.
I've requested that this question be deleted for the following reason:

Not enough information to confirm an answer.
Referencing the logs should suffice a solution.

Will.
I ended up with both solutions. I upgraded the forest from the master site and then reinstalled the DC at the remote site. It ended up working.