command: dd if=/dev/zero of=disk.img count=204800 bs=512 fdisk disk.img(n....default option...w) sudo losetup -o 1048576 /dev/loop1 disk.img sudo mkfs.ext3 /dev/loop1 mount /dev/loop1 /mnt sudo grub-install --boot-directory=/mnt --modules="part_msdos" disk.img make sudo cp kernel /mnt/ sync qemu-system-x86_64 -hda disk.img -s