shredos.x86_64/board/shredos/genimage.cfg

image boot.vfat {
        vfat {
                extraargs = "-F 32 -n SHREDOS"
                file boot/bzImage           { image = 'bzImage' }
                file boot/grub/grub.cfg     { image = 'grub.cfg' }
                file boot/version.txt       { image = 'version.txt' }
                file boot/shredos.id        { image = '/dev/null' }
                file boot/memtest           { image = 'memtest.bin' }
                file EFI/BOOT/bootia32.efi  { image = 'bootia32.efi' }
                file EFI/BOOT/bootx64.efi   { image = 'bootx64.efi' }
                file EFI/BOOT/grub.cfg      { image = 'grub.cfg' }
                file EFI/BOOT/memtest.efi   { image = 'memtest.efi' }
                file shredos.ico            { image = 'shredos.ico' }
                file README.txt             { image = 'README.txt' }
                file autorun.inf            { image = 'autorun.inf' }
        }

size = 119873792
}

image shredos.img {
        hdimage {
        }

         partition boot {
              in-partition-table = "no"
              image = "boot.img"
              offset = 0
              size = 512
              holes = {"(440; 512)"}
        }

        partition grub {
              in-partition-table = "no"
              image = "grub.img"
              offset = 512
        }

        partition vfat {
                partition-type = 0xC
                image = "boot.vfat"
                offset = 646656
        }
}