serversetup.exe /S FEP-Unattended-console-only.xml
<UnAttend xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <FepCommon> <Organization>Contoso Pharmaceuticals</Organization> <UserName>Corbin, Jim</UserName> <ProductKey>03082-270-0001260-04309</ProductKey> <AcceptEula>true</AcceptEula> <MuOptin>false</MuOptin> <SqmOptin>false</SqmOptin> <SpyNetOptin>None</SpyNetOptin> </FepCommon> <FepConsoleExtension /> </UnAttend>
Sources:
Microsoft Forefront TechCenter - FEP 2010 - Unattended Installation
Microsoft Forefront TechCenter - FEP 2010 - Setup Configuration Files