Preliminary steps prior to migrating Ex2007 to Ex2013

In preparation for building a new S2012 server to host Ex2013, I replaced both DCs (2008 R2) with S2012 but have not changed the functional level (yet).  Should I do that prior installing Ex2013 on the new server?  My approach is to install Ex2013, figure out how to transition all the action and the files to the new server (I always get lost here somewhere), and then uninstall Ex2007, take the old box off the domain, pull the plug.  Besides the functional level question, anything else I should know?  Is there an easy guide that can help me through the dark woods of the server transition?  Thanks for the help.
dvanakenAsked:
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Simon Butler (Sembee)ConsultantCommented:
As long as the domain and forest is 2003 native, you don't need to increase the functional level. You can do so, Exchange doesn't care, but it isn't a requirement.

Start with the Deployment Assistant:
http://technet.microsoft.com/en-us/exchange/jj657516.aspx

Then go from there. It isn't as hard as it seems, certainly not as difficult as the 2003 to 2007 migration.

Simon.
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dvanakenAuthor Commented:
Simon-  thank you (I was hoping you would respond).  How do I check if the domain and forest is 2003 native?
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dvanakenAuthor Commented:
Sorry, I should have thought this through before asking how to check.

Forest - 2008 R2
Domain - 2008 R2
DC - 2012

I assume you mean "at least" 2003...
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Simon Butler (Sembee)ConsultantCommented:
Yes, anything higher than 2003 is fine.

Simon.
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dvanakenAuthor Commented:
Help!  Made some progress, but when I downloaded the link for the EX2013 CU2 binary, the link must have been wrong and when I ran setup.exe /PrepareAD, it announced itself as CU1, not CU2 but it went on and continued the AD prep.   Now that I have the correct download should I run /PrepareAD again from the CU2 files?  Thanks.
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Simon Butler (Sembee)ConsultantCommented:
If you are not in a multiple domain forest, you don't have to prep the domain manually. Just run setup.exe and let the installer get on with the job.

You can download the CU2 media if you like and run prep again. That does no harm. CU3 will be released in a few weeks as well (they are quarterly).

Simon.
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dvanakenAuthor Commented:
I re-ran the domain prep and checked in the AD to confirm the productID, etc.  All looks good.  I will run the install today.  I have never used certificates before for owa access but I think I will this time - can I add that later once things are confirmed running?
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dvanakenAuthor Commented:
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dvanakenAuthor Commented:
Thanks Simon! See my new question!
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Windows Server 2012

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