> The three images I have been working with are recent netinst weekly > builds, a recent Finnix, and the gparted live CD. All three go on their > own partition, in hope that that partition would isolate them from file > system catastrophes.
Nice. In the past I've used the `grub-imageboot` package for that. AFAICT it requires you put the `.iso` files in `/boot/images/` which is impractical for large ISOs, so maybe you could try and contribute your code to that package. Stefan