Hi, > Your question is how to make a cd with grub on it ?
Yes. GNU xorriso is like cdrtools + growisofs in one single binary. My question about GRUB on CD shall improve the mkisofs-like aspect of xorriso. I am able to influence ISO image production in any detail. But i need instructions how to prepare it so that a PC BIOS starts GRUB correctly. I expect a BIOS to ignore the first 16 blocks of a CD unless an El Torito record points to an address in there. Robert Millan's example > > cat boot.img core.img> tmp > > mkisofs --embedded-boot tmp -o grub.iso -r somedir places GRUB files into those 16 blocks. But it does not produce an El Torito record when run with his latest mkisofs and a dummy file "tmp". So either his mkisofs wants to see real GRUB files or my theory about BIOS + CD + GRUB is wrong. > menuentry "ISO Live - Ubuntu 9.10 Karmic AMD64" { > insmod loopback > insmod iso9660 > set isofile="/iso/lucid-desktop-amd64.iso" Interesting example. It is astounding what one can do with a bootloader nowadays. It would be in my current focus of interest, if that ISO image itself is equipped with GRUB and boots from real CD. In that case i would like to know an URL for downloading it. Have a nice day :) Thomas _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel