Syslinux

The SYSLINUX Project covers lightweight bootloaders for floppy media (SYSLINUX), network booting (PXELINUX), and bootable "El Torito" CD-ROMs (ISOLINUX). The project also includes MEMDISK, a tool to boot legacy operating systems (such as DOS) from nontraditional media; it is usually used in conjunction with PXELINUX and ISOLINUX.

Syslinux Wiki Page

Syslinux Project Pages