diff --git a/tools/mk_qemu_image.sh b/tools/mk_qemu_image.sh
new file mode 100755
index 0000000..ec3ba43
--- /dev/null
+++ b/tools/mk_qemu_image.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+set -e
+
+if [ "$#" -ne 1 ]; then
+    echo "$0 path-to-system.img | path-to-vendor.img" >&2
+    exit 1
+fi
+
+srcimg=$1
+base_srcimg=`basename $srcimg`
+label="${base_srcimg%.*}"
+dir_name=$(dirname $srcimg)
+target=${dir_name}/$label-qemu.img
+
+dd if=/dev/zero of=$target ibs=1024k count=1
+dd if=$srcimg of=$target conv=notrunc,sync ibs=1024k obs=1024k seek=1
+unamestr=`uname`
+if [[ "$unamestr" == 'Linux' ]]; then
+curdisksize=$(stat -c %s $target)
+elif [[ "$unamestr" == 'Darwin' ]]; then
+curdisksize=$(stat -f %z $target)
+else
+echo "Cannot determine OS type, quit"
+exit 1
+fi
+
+dd if=/dev/zero of=$target conv=notrunc bs=1 count=1024k seek=$curdisksize
+
+disksize=`expr $curdisksize + 1024 \* 1024 `
+
+end=`expr $disksize \/ 512 - 2048 - 1`
+${SGDISK:-sgdisk} --clear $target
+${SGDISK:-sgdisk} --new=1:2048:$end --type=1:8300 --change-name=1:$label $target