Hi, Florian Pelz wrote: > Shall I continue testing?
I'm into ISO images. But it might be interesting to see what Microsoft deems to be bootable and is willing to promote by its weight. > I do not know how to verify on Windows if the boot used UEFI. You could zeroize the x86 machine code in the MBR: dd if=/dev/zero bs=1 count=446 of=/dev/sdb Then BIOS/CSM legacy mode should not have anything to start with. (It would be interesting to know whether there is useful machine code in the MBR at all.) Similarly you could rename the efi/boot directory in order to hide the EFI start-up programs and thus to prevent EFI booting. Have a nice day :) Thomas _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
