Hi,
I can boot several iso files stored in the hdd, like ubuntu, mint, arch etch, but I cannot find a 'recipe' to boot the wattOS-R10-32.iso
Do you know a way to accomplish this? i love being able to try a distro without burning a CD or writing an USB key;
I've already used the second option, but it was slow and with the  mouse freezing bug.

When I try to boot the iso, I receive the error: << can't find  /dev/sr0>>, or something similar.

Thanx

testing config:

menuentry "Try wattOS-R10-32bit without installing" {
    set isofile="/ISOS/wattOS-R10-32.iso"
    loopback loop (hd0,2)$isofile
   linux   (loop)/casper/vmlinuz  file=/cdrom/preseed/custom.seed boot=casper iso-scan/filename=${isofile} quiet splash --
   initrd   (loop)/casper/initrd.gz
}