What is your use case for an unattended installation of PC?   If you use Foundation Central to automate deployments you can also leverage the zero touch framework for deploying additional PCs at remote sites. 

https://github.com/nutanixdev/zerotouch-framework

Hi,
The use case is a complete unattended installation from “empty” datacenter to running Nutanix API.
Foundation Central - Zerotouch framework is based on a running PC… 
But where did that come from ?