@Jim-Holcomb Hello can you help me to do the step by step process?about your answer. --> FOG has a selection of legacy BIOS and UEFI boot files available. They are all hosted in /tftpboot on your FOG server. If you use FOG as TFTP server then you simply need to specify the right boot file in your external DHCP server. If you use an external TFTP server as well just copy the right files from /tftpboot to that. For UEFI machines I’d suggest using ipxe.efi as boot file.

I hope you help me. thanks.