Hi, Michel Bouissou wrote: > After having disabled Secure boot, I have discovered that none of the > usual (curent, latest versions as of 2017/12) Linux live USB sticks > (among : Ubuntu, Mint, Debian, Manjaro, PartedMagic) was able to boot on > this machine.
I assume the boot success depends much on the set GRUB modules in the image. So it matters to know exactly which images you tested. To give tangible examples, these don't work after being dd'ed onto an USB stick device (not a partition) ? https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.3.0-amd64-netinst.iso (290 MiB) https://cdimage.debian.org/debian-cd/current-live/amd64/iso-hybrid/debian-live-9.3.0-amd64-xfce.iso (1.8 GiB) (A rare example of a hybrid ISO equipped with SYSLINUX for EFI would be http://ftp.uni-kl.de/pub/linux/knoppix-dvd/KNOPPIX_V8.1-2017-09-05-EN.iso (4 GiB) ) ------------------------------------------------------------------------ I wonder whether a grub-mkrescue ISO would succeed. On Debian i'd install package "grub-efi-amd64-bin" (and dependencies), create a dummy directory, run grub-mkrescue, and dd the file output.iso to the USB stick: mkdir ./minmal grub-mkrescue -o output.iso ./minimal dd if=output.iso bs=64K of=/dev/sdc If i try such an ISO with OVMF+qemu as -hda, i get to a "grub rescue>" prompt which reacts on e.g. "ls" and Enter key. (More than the rescue mode is not to expect with an empty directory as payload.) Have a nice day :) Thomas _______________________________________________ Bug-grub mailing list Bug-grub@gnu.org https://lists.gnu.org/mailman/listinfo/bug-grub
