I'm currently trying to build myself a bootable USB thumbdrive from which I could boot a list of ISOs files. I know GRUB2 allow to boot ISOs files without the need of extracting the ISO content and some users made grub.cfg files showing how to do it.
The only thing I'm having issues with is how to get GRUB2 to be the USB thumbdrive MBR. I'm currently doing the test with a Karmic Koala Alpha 3 Live CD, so if someone has a good tutorial on how to do this, I would be very interested.
Thanks a lot!