diff --git a/gdisk_test.sh b/gdisk_test.sh
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+#!/bin/bash
+# test gdisk and sgdisk by creating a dd file
+# Copyright (C) 2011 Guillaume Delacour <gui@iroqwa.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+#
+# Requires: coreutils (mktemp, dd) and 64M of disk space in /tmp (temp dd disk)
+#
+# This script test gdisk commands through the following scenario:
+# - Initialize a new GPT table
+# - Create a single Linux partition
+# - Change name of partition
+# - Change type of partition
+# - Backup to file the GPT table
+# - Delete the single partition
+# - Restore from backup file the GPT table
+# - Wipe the GPT table
+
+# TODO
+# Try to generate a wrong GPT table to detect problems (test --verify)
+# Create MBR partition table with fdisk and migrate it with gdisk
+
+GDISK_BIN=./gdisk
+SGDISK_BIN=./sgdisk
+
+OPT_CLEAR="o"
+OPT_NEW="n"
+OPT_CHANGE_NAME="c"
+OPT_CHANGE_TYPE="t"
+OPT_BACKUP="b"
+OPT_DELETE="d"
+OPT_ZAP="z"
+
+# temp disk for testing gdisk
+TEMP_DISK=$(mktemp)
+# 64 MiB
+TEMP_DISK_SIZE=65536
+
+# the test partition to create
+TEST_PART_TYPE="8300"
+TEST_PART_DEFAULT_NAME="Linux filesystem"
+
+# newname for the partition
+TEST_PART_NEWNAME=$(tr -dc "[:alpha:]" < /dev/urandom | head -c 8)
+# and new type (swap for example)
+TEST_PART_NEWTYPE="8200"
+
+# GPT data backup to filename
+GPT_BACKUP_FILENAME=$(mktemp)
+
+# Pretty print string (Red if FAILED or green if SUCCESS)
+# $1: string to pretty print
+pretty_print() {
+	if [ "$1" = "SUCCESS" ]
+	then
+		# green
+		color="32"
+	else
+		# red
+		color="31"
+	fi
+
+	printf "\033[0;${color}m**$1**\033[m $2\n"
+}
+
+# Verify that the partition exist and has the given type/name
+# $1: Partition type to verify (ex.: 8300)
+# $2: Partition name to verify (ex.: Linux filesystem)
+# $3: Text to print
+verify_part() {
+	partition=$($GDISK_BIN -l $TEMP_DISK | tail -n 1)
+	echo $partition | grep -q "$1[[:space:]]$2$"
+
+	if [ $? -eq 0 ]
+	then
+		pretty_print "SUCCESS" "$3"
+	else
+		pretty_print "FAILED" "$3"
+		exit 1
+	fi
+}
+
+
+#####################################
+# Get GUID of disk
+#####################################
+get_diskguid() {
+	DISK_GUID=$($GDISK_BIN -l $TEMP_DISK | grep "^Disk identifier (GUID):" | awk '{print $4}')
+	return $DISK_GUID
+}
+
+
+#####################################
+# Create a new empty table
+#####################################
+create_table() {
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+$OPT_CLEAR
+Y
+w
+Y
+EOF
+		;;
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_CLEAR}
+		;;
+	esac
+
+	# verify that the table is empty
+	# only the columns should appear in the table
+	verify_part "Code" "Name" "Create new empty GPT table"
+	echo ""
+}
+
+
+
+#####################################
+# First create a new partition
+#####################################
+create_partition() {
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+$OPT_NEW
+1
+
+
+$TEST_PART_TYPE
+w
+Y
+EOF
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_NEW}=1 -${OPT_CHANGE_NAME}=1:"${TEST_PART_DEFAULT_NAME}"
+		;;
+	esac
+
+	verify_part "$TEST_PART_TYPE" "$TEST_PART_DEFAULT_NAME" "Create new partition"
+	echo ""
+}
+
+
+#####################################
+# Change name of partition
+#####################################
+change_partition_name() {
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+$OPT_CHANGE_NAME
+$TEST_PART_NEWNAME
+w
+Y
+EOF
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_CHANGE_NAME}=1:${TEST_PART_NEWNAME}
+		;;
+	esac
+
+	verify_part "$TEST_PART_TYPE" "$TEST_PART_NEWNAME" "Change partition 1 name ($TEST_PART_DEFAULT_NAME -> $TEST_PART_NEWNAME)"
+	echo ""
+}
+
+
+change_partition_type() {
+#####################################
+# Change type of partition
+#####################################
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+$OPT_CHANGE_TYPE
+$TEST_PART_NEWTYPE
+w
+Y
+EOF
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_CHANGE_TYPE}=1:${TEST_PART_NEWTYPE}
+		;;
+	esac
+
+	verify_part "$TEST_PART_NEWTYPE" "$TEST_PART_NEWNAME" "Change partition 1 type ($TEST_PART_TYPE -> $TEST_PART_NEWTYPE)"
+	echo ""
+}
+
+
+#####################################
+# Backup GPT data to file
+#####################################
+backup_table() {
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+$OPT_BACKUP
+$GPT_BACKUP_FILENAME
+q
+EOF
+echo ""
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_BACKUP}=${GPT_BACKUP_FILENAME}
+		;;
+	esac
+
+	# if exist and not empty; we will test it after
+	if [ -s $GPT_BACKUP_FILENAME ]
+	then
+		pretty_print "SUCCESS" "GPT data backuped sucessfully"
+	else
+		pretty_print "FAILED" "Unable to create GPT backup file !"
+		exit 1
+	fi
+}
+
+
+#####################################
+# Now, we can delete the partition
+#####################################
+delete_partition() {
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+$OPT_DELETE
+w
+Y
+EOF
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_DELETE}=1
+		;;
+	esac
+
+	# verify that the table is empty (just one partition):
+	# only the columns should appear in the table
+	verify_part "Code" "Name" "Delete partition 1"
+	echo ""
+}
+
+
+#####################################
+# Restore GPT table
+#####################################
+restore_table() {
+	$GDISK_BIN $TEMP_DISK << EOF
+r
+r
+l
+$GPT_BACKUP_FILENAME
+w
+Y
+EOF
+
+	verify_part "$TEST_PART_NEWTYPE" "$TEST_PART_NEWNAME" "Restore the GPT backup"
+	echo ""
+}
+
+
+#####################################
+# Change UID of disk
+#####################################
+change_disk_uid() {
+
+	# get UID of disk before changing it
+	GUID=get_diskguid
+
+
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+x
+g
+R
+w
+Y
+EOF
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -U=R
+		;;
+	esac
+
+	# get GUID after change
+	NEW_DISK_GUID=get_diskguid
+
+	# compare them
+	if [ "$DISK_GUID" != "$NEW_DISK_GUID" ]
+	then
+		pretty_print "SUCCESS" "GUID of disk has been sucessfully changed"
+	else
+		pretty_print "FAILED" "GUID of disk is the same as the previous one"
+	fi
+}
+
+#####################################
+# Wipe GPT table
+#####################################
+wipe_table() {
+	case $1 in
+		gdisk)
+			$GDISK_BIN $TEMP_DISK << EOF
+x
+$OPT_ZAP
+Y
+Y
+EOF
+		;;
+
+		sgdisk)
+			$SGDISK_BIN $TEMP_DISK -${OPT_ZAP}
+	esac
+
+	# verify that the table is empty (just one partition):
+	# only the columns should appear in the table
+	verify_part "Code" "Name" "Wipe GPT table"
+	echo ""
+}
+
+
+###################################
+# Main
+###################################
+
+# create a file to simulate a real device
+dd if=/dev/zero of=$TEMP_DISK bs=1024 count=$TEMP_DISK_SIZE
+
+if [ -s $TEMP_DISK ]
+then
+	pretty_print "SUCCESS" "Temp disk sucessfully created"
+else
+	pretty_print "FAILED" "Unable to create temp disk !"
+	exit 1
+fi
+
+# test gdisk and sgdisk
+for binary in gdisk sgdisk
+do
+	echo ""
+	printf "\033[0;34m**Testing $binary binary**\033[m\n"
+	echo ""
+	create_table          "$binary"
+	create_partition      "$binary"
+	change_partition_name "$binary"
+	change_partition_type "$binary"
+	backup_table          "$binary"
+	delete_partition      "$binary"
+	restore_table         # only with gdisk
+	change_disk_uid       "$binary"
+	wipe_table            "$binary"
+done
+
+# remove temp files
+rm -f $TEMP_DISK $GPT_BACKUP_FILENAME
+
+exit 0