[Clonezilla-live] grub2 can't boot clonezilla

[contro o. <con...@gm...>]

my system:debian6.0.4+clonezilla-live-1.2.12-37-i486.iso
clonezilla-live-1.2.12-37-i486.iso  is  in the
 '(hd0,msdos1)/clonezilla-live-1.2.12-37-i486.iso'

my grub configuration:

menuentry "Clonezilla live" {
set isofile="(hd0,msdos1)/clonezilla.iso"
loopback loop $isofile
linux (loop)/live/vmlinuz boot=live live-config noswap nolocales edd=on
nomodeset ocs_live_run=\"ocs-live-general\"   /
            ocs_live_extra_param=\"\" ocs_live_keymap=\"\"
ocs_live_batch=\"no\" ocs_lang=\"\"    /
                 vga=788 ip=frommedia nosplash toram=filesystem.squashfs
findiso=$isofile
initrd (loop)/live/initrd.img
}



when i boot ,the output is :
modprobe :module lks  not found in modules.dep
how to revise it?