#!/bin/sh
set -e

for i in `seq 0 15`; do
    sudo losetup -d /dev/loop$i || true
done
sudo rmmod loop || true

sudo modprobe loop max_loop=16
dd if=/dev/zero of=/dev/shm/zero bs=1M count=0 seek=10 2>/dev/null
for i in `seq 0 15`; do
    sudo losetup /dev/loop$i /dev/shm/zero
    sudo md5sum /dev/loop$i
    sudo losetup -d /dev/loop$i
done

rm /dev/shm/zero
sudo rmmod loop