My os need following commands.
qemu (emulator), sudo, gcc, mount, nasm (assembler)

At first please create a directory for mounting image file.(sudo command is needed)
$sudo mkdir /hdd
Then let's start executing myOS.
Fist, mount the image file to /hdd directory.
$sh mount.sh (need sudo command)
Next, make command create kernel.bin and move it to the /hdd directory We made at first step.
$make
At last,  run qemu (emulator).
$sh run.sh