Booting from iso9660 images using GRUB 2
In #grub one of the most asked questions is if GRUB can boot iso9660 images. Or better: how GRUB should do this, people don’t even think about if it would be possible or not. Of course this annoys many people and “GRUB can not boot CDROM images” is nowadays the most important line in the topic.
Actually, GRUB can read ISO9660(”iso”) images. It can for example loads the first few sectors and boot it. But most people do not realize is “what then?”. What would the loaded operating system do? It will most likely look for a CDROM, which it won’t find and fail.