I've been trying to use the loopback feature of GRUB2 (version 1.96+20090826-3 from Debian Sid) in conjunction with chainloading. The idea was to keep the grub.cfg entries simple, and to preserve the menus on each ISO. I'm not having any luck with it, though. Here's my grub.cfg:
menuentry "Parted Magic 4.4" {
loopback loop /iso/pmagic-4.4.iso
chainloader (loop)+1
}
menuentry "Trinity Rescue Kit 3.3 Build 334" {
loopback loop /iso/trinity-rescue-kit.3.3-build-334.iso
chainloader (loop)+1
}
This only gives me "invalid signature" errors. Using the [--force] option for chainloader didn't work. GRUB2 would either just hang or reboot the computer. The same thing happens when I use:
menuentry "Parted Magic 4.4" {
loopback loop /iso/pmagic-4.4.iso
set root=(loop)
chainloader +1
}
menuentry "Trinity Rescue Kit 3.3 Build 334" {
loopback loop /iso/trinity-rescue-kit.3.3-build-334.iso
set root=(loop)
chainloader +1
}
Changing the "+1" to other numbers still produced the same result, while removing it causes invalid file errors. Am I doing something wrong here? Or is it just not possible with the current version of GRUB2?
