On Wed, Apr 24, 2019 at 08:56:57AM +0200, Thomas Schmitt wrote: > Florian Pelz wrote > > So… GPT is wrong for some optical media too? > > Not in this aspect. GPT partitions must not start at block 0. > So the overall ISO superblock is not mountable as partition and thus > free to claim the full image size as filesystem size. >
Sorry, I meant to quote this aspect: > > One can read trailing garbage not only from USB sticks but also from > > most DVD types. > > […] > > > > So… GPT is wrong for some optical media too? > > > By the way, someone I know has a most peculiar machine called Lenovo > > Ideapad 100S which does not boot Guix, […] > > If Guix does not show up in the boot manager, try a plain grub-mkrescue > image that was made when GRUB was configured for both EFI variations: > 32 bit x86 and 64 x86. > My experiments are made when it is configured for those two plus PC-BIOS. > The EFI partition then has bootx64.efi and bootia32.efi in /efi/boot/. > Will do. Regards, Florian
