Hi, Daniel Kiper wrote: > > 2) Create EFI System Partition (code EF00) using gdisk. 256.0 MiB will > > suffice. > > 3) Format EFI System Partition > > # mkdosfs /dev/sdb1 > > > >4) Create GRUB2 EFI bootable image > > # mount /dev/sdb1 /mnt > > # mkdir /mnt/efi/boot > > # grub-mkstandalone -O x86_64-efi -o /mnt/efi/boot/bootx64.efi
Michel Bouissou wrote: > I tested the USB stick on my son's machine, and I do get a grub prompt. Does this mean that the decisive trick is to use GPT with EFI partition instead of a MBR partition of type 0xEF ? Or is there something missing in the FAT filesystem images of e.g. Debian installation ISOs like https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.3.0-amd64-netinst.iso ? Michel: Does a simple ISO "output.iso" work, when made by mkdir ./minimal echo dummy >./minimal/dummy grub-mkrescue -o output.iso ./minimal and then copied onto the plain USB stick device (e.g. /dev/sdc) ? grub-mkrescue produces valid GPT in ISO 9660. Have a nice day :) Thomas _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
