Hi, let me preface everything by first of all saying thank you very much in advance! I'm trying to upgrade exchange from 2010 to 2013 CU7 and have read through all the pre-requisites, have installed all the additional packages (.Net Framework 4.5, Mgmt Framework 3.0, Windows Identity Foundation, UC Managed API 4.0, and one hotfix) but am getting one error during the readiness check of the Exchange 2013 Setup:
Error:
Exchange Server 2013 can't be installed on a server that has an Exchange 2007 or Exchange 2010 server role installed.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.Exchange2013AnyOnExchange2010Server.aspx
Warning:
Setup will prepare the organization for Exchange 2013 by using 'Setup /PrepareAD'. No Exchange 2007 server roles have been detected in this topology. After this operation, you will not be able to install any Exchange 2007 servers.
For more information, visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.NoE12ServerWarning.aspx
Do I really have to uninstall the old exchange instance before I can install the new one? I would think that would be a part of the upgrade/setup process that it would uninstall old, install new, and preserve data. Is there something I'm missing?