Let us learn installing Exchange 2010 Sp2 on Windows Server 2008 R2 Sp1 it covers the same steps on installing Exchange 2010 Sp3 on Windows Server 2008 R2 Sp1

I would install the Exchange 2010 Sp2 in a Environment where Exchange 2003 Server is already there .

Its as similar . where we need to prepare the legacy Exchange permission to get that installed and working properly

Step 1.

I have installed Service pack 1 on Windows Server 2008 R2 where I can overcome without installing hotfixes for Exchange 2010

Prerequisites Differs with the operating Systems

This Technet article would provide you for other versions of operating systems

http://technet.microsoft.com/en-us/library/bb691354.aspx

Step 2.

Download and Install “Microsoft Filter Pack” (64bit Version)

http://www.microsoft.com/en-in/download/details.aspx?id=17062

Step 3.

On the Start menu, navigate to All Programs > Accessories > Windows PowerShell. Open an elevated Windows PowerShell console (Right Click – Run as administrator), and run the following command.

Import-Module ServerManager

And Running this command for typical installation where all the roles will be installed HUB , CAS and Mailbox Servers

Add-WindowsFeature NET-Framework,RSAT-ADDS,Web-Server,Web-Basic-Auth,Web-Windows-Auth,Web-Metabase,Web-Net-Ext,Web-Lgcy-Mgmt-Console,WAS-Process-Model,RSAT-Web-Server,Web-ISAPI-Ext,Web-Digest-Auth,Web-Dyn-Compression,NET-HTTP-Activation,Web-Asp-Net,Web-Client-Auth,Web-Dir-Browsing,Web-Http-Errors,Web-Http-Logging,Web-Http-Redirect,Web-Http-Tracing,Web-ISAPI-Filter,Web-Request-Monitor,Web-Static-Content,Web-WMI,RPC-Over-HTTP-Proxy -Restart

Step 4.

Reboot the Server

Now Prerequisites Installed successfully

Step 5.

Now open Command Prompt “Browse the Command prompt into the setup location”

and Run

setup /PrepareLegacyExchangePermissions

or

setup /pl

We run this as we prepare the legacy (Exchange 2003) Server permissions,

Running this command won’t harm your environment .

Befor Running this command make sure your Domain Function Level and Forest Functional level in Windows Server 2003 is in native mode and your Exchange 2003 is in native mode,

Otherwise , It won’t allow you to install Exchange 2010

Refer link :

http://technet.microsoft.com/en-us/library/bb125224.aspx

Step 6.

Preparing the Schema

Setup.com /PrepareSchema

Step 7.

Preparing Active Directory

Setup.com /preparead /OrganizationName:"First Organization"

This Switch can be removed if you have an Exchange Server already in your Organization

/OrganizationName:"First Organization"

Or if you want to change the organization name . you can use this switch

Step 8.

Now prepare the domain

Setup.com /Preparedomain

If you have multiple domains run

Setup.com /preparealldomains

Step 9.

Now Run the Setup

Step 10.

Choose Typical to Install HUB,CAS and Mailbox

Give a Check mark for Automatically install Windows Server roles

Step 12.

If this is my internet facing server , Give the external domain name

Step 13.

If Exchange 2003 Exists in your Environment , you will get this option to configure mail flow between these Servers

Step 14.

Now Setup will Run for some time

Step 15.

Reboot your Server

Great !!

You Learnt how to install Exchange 2010 now !!