Etherboot 4.2.1 – Etherboot is a free software package for making boot ROMS for booting Linux and other operating systems on x86 PCs over a network using Internet Protocols, i.e. bootp/DHCP and tftp.
You can download it from the following link: https://packetstormsecurity.com/files/download/13233/etherboot-4.2.1.tar.gz
Source: https://packetstormsecurity.com/files/13233/etherboot-4.2.1.tar.gz.html