mount.qcow

#!/bin/sh

IMAGE="$1"
DISK="0"
PARTITION="1"
MOUNTPOINT="$2"

print_usage(){

echo "Usage: mount.qcow <IMAGE> <MOUNTPOINT>"
}

if [ "$#" -eq "0" ] # if there is no parameter
then
  print_usage
else
  if [ $(id -u) -eq "0" ] # if the user is root
  then
    if file "$IMAGE"|grep -q "QEMU QCOW Image" && [ -d "$MOUNTPOINT" ] # if image is a qcow file and mountpoint is a directory
    then
      modprobe nbd max_part=16

      qemu-nbd -c /dev/nbd${DISK} "$IMAGE"

      mount /dev/nbd${DISK}p${PARTITION} "$MOUNTPOINT"
    else
      print_usage
    fi
  else
    echo "mount.qcow: only root can do that"
  fi
fi