Steps to create nested ESXI server on a physical ESXI

 

Follow steps:

1.Create a New Virtual Machine selecting:

   Guest OS Family: Others

   Guest OS version: VMware ESXi 6.5 and later

2.On the Hardware "enable hardware assisted virtualization "for CPU:

3.Provide Memory(12GB) and Hard disk (10GB) and complete it.

4.Power On the Virtual machine and from CD/DVD attach "VMvisor installation ISO" file

5.Then do "alt+ctrl+delete" 

and continue installation with selecting language/disks/root password.