netboot.xyz/docs/boot-iso.md

Booting from ISO

Burning a CD/DVD

To create a bootable CD-ROM/DVD, burn the ISO image netboot.xyz-dhcp.iso if you have DHCP or netboot.xyz-static.iso if you require manual entry (~1MB in size) to a blank CD-ROM/DVD. Insert the media into the server, set the proper boot order and boot up.

Virtual Machine Software

You can also use these ISOs to boot any sort of VM in Citrix XenServer, VMware ESXi, VMware Fusion, VirtualBox.

Out of Band Virtual Media

They are great for attaching to remote virtual media of a server like the Dell DRAC or HP iLOs. Because the iPXE boot disk is so light weight, they are great for starting installations where there might be really low bandwidth.