1#!/bin/sh 2# 3# Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net> 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD$ 28 29if [ $# -ne 1 ]; then 30 echo "usage: zfsboottest.sh <pool>" >&2 31 exit 1 32fi 33 34which -s zfsboottest 35if [ $? -eq 0 ]; then 36 zfsboottest="zfsboottest" 37else 38 if [ ! -x "/usr/src/tools/tools/zfsboottest/zfsboottest" ]; then 39 echo "Unable to find \"zfsboottest\" utility." >&2 40 exit 1 41 fi 42 zfsboottest="/usr/src/tools/tools/zfsboottest/zfsboottest" 43fi 44 45startdir="/boot" 46 47pool="${1}" 48zpool list "${pool}" >/dev/null 2>&1 49if [ $? -ne 0 ]; then 50 echo "No such pool \"${pool}\"." >&2 51 exit 1 52fi 53bootfs=`zpool get bootfs "${pool}" | tail -1 | awk '{print $3}'` 54if [ "${bootfs}" = "-" ]; then 55 bootfs="${pool}" 56fi 57mountpoint=`df -t zfs "${bootfs}" 2>/dev/null | tail -1 | awk '{print $6}'` 58if [ -z "${mountpoint}" ]; then 59 echo "The \"${bootfs}\" dataset is not mounted." >&2 60 exit 1 61fi 62if [ ! -d "${mountpoint}${startdir}" ]; then 63 echo "The \"${mountpoint}${startdir}\" directory doesn't exist." >&2 64 exit 1 65fi 66vdevs="" 67for vdev in `zpool status "${pool}" | grep ONLINE | awk '{print $1}'`; do 68 vdev="/dev/${vdev#/dev/}" 69 if [ -c "${vdev}" ]; then 70 if [ -z "${vdevs}" ]; then 71 vdevs="${vdev}" 72 else 73 vdevs="${vdevs} ${vdev}" 74 fi 75 fi 76done 77 78list0=`mktemp /tmp/zfsboottest.XXXXXXXXXX` 79if [ $? -ne 0 ]; then 80 echo "Unable to create temporary file." >&2 81 exit 1 82fi 83list1=`mktemp /tmp/zfsboottest.XXXXXXXXXX` 84if [ $? -ne 0 ]; then 85 echo "Unable to create temporary file." >&2 86 rm -f "${list0}" 87 exit 1 88fi 89 90echo "zfsboottest.sh is reading all the files in ${mountpoint}${startdir} using" 91echo "boot code and using file system code." 92echo "It calculates MD5 checksums for all the files and will compare them." 93echo "If all files can be properly read using boot code, it is very likely you" 94echo "will be able to boot from \"${pool}\" pool>:> Good luck!" 95echo 96 97"${zfsboottest}" ${vdevs} - `find "${mountpoint}${startdir}" -type f | sed "s@^${mountpoint}@@"` | egrep '^[0-9a-z]{32} /' | sort -k 2 >"${list0}" 98find "${mountpoint}${startdir}" -type f | xargs md5 -r | sed "s@ ${mountpoint}@ @" | egrep '^[0-9a-z]{32} /' | sort -k 2 >"${list1}" 99 100diff -u "${list0}" "${list1}" 101ec=$? 102 103rm -f "${list0}" "${list1}" 104 105if [ $? -ne 0 ]; then 106 echo >&2 107 echo "You may not be able to boot." >&2 108 exit 1 109fi 110 111echo "OK" 112