I'm currently loading FreeDOS iso (freedos-1.0-full.iso) from Grub4DOS, and Grub4DOS is actually first loaded from Grub2.
Grub2 grub.cfg
menuentry "FreeDOS 1.0" {
setroot=(hd0,1)
linux /grub.exe --config-file="/menus/freedos.lst"
}
Grub4DOS freedos.lst
title FreeDOS 1.0
find --set-root /images/freedos-1.0-full.iso
map --mem /images/freedos-1.0-full.iso (0xff)
map --hook
root (0xff)
map --mem /isolinux/data/fdboot.img (fd0)
map --rehook
chainloader (fd0)+1
rootnoverify (fd0)
Does anyone know how to load FreeDOS iso directly from Grub2? Thanks