Oct 152012
It is very convenient to be able to boot floppy disk images or CD images directly from Grub without having to write the images to their associated media … not least because floppy disk drives are getting quite long in the tooth. And in fact I haven’t had a floppy disk drive installed for a while now. As it happens it is very easy to do :-
sudo zsh apt-get install grub-imageboot mkdir /boot/images # Move any images (CD or floppy) to /boot/images # With either the extension .img (for floppies) or .iso (for CDs) update-grub2
… and if you use this to update your BIOS, it is worth writing down all the key settings before upgrading!