Hi, I've been trying, without success, to create a legacy bios/uefi dual boot usb stick.
If I partition the usb stick using gdisk, like this: $ sudo gdisk /dev/sdc ... Number Start (sector) End (sector) Size Code Name 1 2048 2097152 1023.0 MiB EF00 EFI System 2 2099200 2103295 2.0 MiB EF02 BIOS boot partition 3 2103296 61013982 28.1 GiB 8300 Linux filesystem $ sudo mkfs.vfat /dev/sdc1 $ sudo mkfs.ext4 /dev/sdc3 $ sudo mount /dev/sdc1 $ sudo x86_64-grub-install --target=x86_64-efi --boot-directory=/mnt/sdc1/EFI/BOOT --efi-directory=/mnt/sdc1 --removable $ sudo mount /dev/sdc3 $ sudo x86_64-grub-install --target=i386-pc --boot-directory=/mnt/sdc3/boot /dev/sdc2 ..the last line fails with an error message that I forgot to note down. If I then try: $ sudo x86_64-grub-install --target=i386-pc --boot-directory=/mnt/sdc3/boot /dev/sdc ..there is no error message, uefi boot works fine, but legacy bios boot fails with an "invalid partition table" error I assume I'm making a mistake somewhere, but where? Regards John _______________________________________________ Help-grub mailing list [email protected] https://lists.gnu.org/mailman/listinfo/help-grub
