Etherboot v4.1p10 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). Etherboot is useful for booting PCs diskless.
You can download it from the following link: https://packetstormsecurity.com/files/download/13231/etherboot-4.1pre10.tar.gz
Source: https://packetstormsecurity.com/files/13231/etherboot-4.1pre10.tar.gz.html