[Qemu-devel] [help]how to make qemu-img utility to support writting file or directory to the image file

[马磊]

 Hi,
    qemu-img is only to support create/info and so on whithout writting
operation to the image file.
     I have ported the reading operation for a image file form grub2 to
qemu-img. But NTFS document online  is not detailed enough, how to do
inorder to achieve the goal of writting to a image file?
    If anyone encountered the same problem, please reply to me.
    Thanks ahead!

Bruce