Booting linux distros iso with grub4dos

Hi!

I'm trying to boot various linux distro isos with grub4dos from usb and hdd. I have succesfully booted ubuntu and an arch linux derivative named ArchBang with the following code:

Ubuntu:

title Try Ubuntu without installing
find --set-root /ubuntu-13.10-desktop-i386.iso
map /ubuntu-13.10-desktop-i386.iso (0xff) || map --mem /ubuntu-13.10-desktop-i386.iso (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz  file=/cdrom/preseed/ubuntu.seed noprompt boot=casper persistent iso-scan/filename=/ubuntu-13.10-desktop-i386.iso quiet splash --
initrd /casper/initrd.lz

ArchBang:

title ARCHBANG
map (hd1,0)/archbang-testing-2013.12.17-i686.iso (0xff) || map --mem (hd1,0)/archbang-testing-2013.12.17-i686.iso (0xff)
map --hook
root (0xff)
kernel /arch/boot/i686/vmlinuz archisobasedir=arch archisolabel=ARCHBANG quiet img_dev=/dev/sdb1 img_loop=/archbang-testing-2013.12.17-i686.iso earlymodules=loop
initrd /arch/boot/i686/archiso.img

Now, any idea for booting a debian based distro named CrunchBang http://crunchbang.org ?

What are the kernel parameters that need to be pased ?

Thanks