Exchange 2013 SP1 Readiness Checks: No Exchange 2007 server detected

Question

Hi there,
We are planning to upgrade our current Exchange 2007 server with the new Exchange 2013 SP1. I have been following Exchange Server Deployment Assistant to assist me with this task. Only schema update (setup /PrepareSchema) had been done so
far. I didn’t run setup /PrepareAD command manually because I wasn’t sure if I need to provide ‘Organisation Name’ with it or not?! I have installed all of the prerequisites as noted in the Microsoft documentation.
Now, I am a bit confuse with the ‘Readiness Checks’ page during graphical user installation of Exchange 2013 SP1 setup on Windows 2012 R2. Windows 2012 R2 server has all available updates applied.
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Warning:
Setup will prepare the organization for Exchange 2013 by using 'Setup /PrepareAD'. No Exchange 2010 server roles have been detected in this topology. After this operation, you will not be able to install any Exchange 2010 servers.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.NoE14ServerWarning.aspx
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I get the message why setup wants to run preparation for the Ex2013 with the ‘Setup /PrepareAD’. But, why ‘No Exchange 2010 server role have been detected in this topology’?! Ok, in my case setup doesn’t detect Exchange 2007 server. Is that ok to proceed
with the installation or something else needs to be done first?
Thanks in advance.

Answer 1

I need Exchange guru advice here please. Since we already have Exchange 2007 SP3 RU 10 in our Windows 2008R2 Active Directory domain here I need to be 100% confident that pushing Exchange 2013 SP1 “Install” will not override our existing Ex2007 environment.
That would be a huge disaster!
Microsoft is saying that: “Microsoft Exchange Server 2013 Setup displayed this warning because
no Exchange Server 2010 or Exchange Server 2007 server roles exist in the organization.”
http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.NoE14ServerWarning.aspx
Ok, I get the message about if I continue with Exchange Server 2013 installation, I won’t be able to add Exchange 2010 or Exchange 2007 servers to the organization at a future date..., and why would I need to do that anyway?!
Microsoft wording about “some solutions may require the use...” are very confusing since we will require to consider “Coexistence or migration requirements"
Perhaps, before running Exchange 2013 SP1 setup I need to run setup for preparing AD without “Organisation Name” parameter?! Something like this:
setup /PrepareAD  /IAcceptExchangeServerLicenseTerms