document updated 16 years ago, on Sep 20, 2010

Bootloaders that can boot a .iso:

SYSLINUX — use MEMDISK
grub4dos — use map --mem
GRUB2 — use loopback command
- NOTE: this only allows you to extract the kernel/initrd from the .iso.... it does NOT allow special access to the .iso after the OS is booted (however, some OS's provide for something like a "mount_iso" boot cheatcode)