Grub is a bootloader for X86 machines.

The syslinux package contains a loader for floppy images that can be booted using grub. When both packages are installed, the procedure is quite straight forward:

• optionally create a subdirectory in grub's root to contain the specific stuff
• copy the memdisk binary and the desired floppy image to the above directory
• add an entry to grub's config like so:

title Boot some floppy image
kernel /dos/memdisk
initrd /dos/BOOT.IMG

• DOS floppy images for download (loop-mount to add custom stuff)