I built a 1GB to boot Knoppix by grub4dos:

- creating a new fs with mkdosfs -n KNOPPIX -F 32
- copying the iso file to KNX.iso to avoid fragmentation, same name as cheatcode example.
- installing grub4dos with bootlace.com /dev/sdb
- copying grldr
- extracting from iso linux and initrd.gz to start the boot process

- creating menu.lst
my menu.lst contains only one entry:
title KNOPPIX CD LXDE
root (hd0,0)
kernel /linux bootfrom=/dev/sda1/KNX.iso ramdisk_size=100000 lang=it vt.default_utf8=0
initrd /minirt.gz

firing the usb drive I can see the boot process starting successfully, but after a while the screen become black and the system hangs.

I know I could extract the iso to the KNOPPIX folder to make it working, but I'd like to keep the iso file handy to create new cd or usb for friends.
So I wish some help to make bootfrom= working

I also noticed than on the CD version there is no create persistent img, someone can help on how I can create such an image ?

thanks in advance
benny