losetup 使用摘要

dd if=/dev/zero of=example.img bs=10240 count=512
mkfs.ext3 -F -q -m0 example.img
losetup /dev/loop0 example.img

mount /dev/loop0 /mnt
mount -o mand example.img /mnt

umount /mnt
losetup -d /dev/loop0