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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 "" } ##################################### # Test stdin EOF ##################################### eof_stdin() { $SGDISK_BIN $TEMP_DISK << EOF ^D EOF pretty_print "SUCCESS" "EOF successfully exit gdisk" } ################################### # Main ################################### # create a file to simulate a real device dd if=/dev/zero of=$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" eof_stdin # only with gdisk done # remove temp files rm -f $TEMP_DISK $GPT_BACKUP_FILENAME exit 0
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