3 # Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
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.
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
30 echo "usage: zfsboottest.sh <pool>" >&2
36 zfsboottest="zfsboottest"
38 if [ ! -x "/usr/src/tools/tools/zfsboottest/zfsboottest" ]; then
39 echo "Unable to find \"zfsboottest\" utility." >&2
42 zfsboottest="/usr/src/tools/tools/zfsboottest/zfsboottest"
48 zpool list "${pool}" >/dev/null 2>&1
50 echo "No such pool \"${pool}\"." >&2
53 bootfs=`zpool get bootfs "${pool}" | tail -1 | awk '{print $3}'`
54 if [ "${bootfs}" = "-" ]; then
55 echo "The \"bootfs\" property is not configured for pool \"${pool}\"." >&2
58 # Dataset's mountpoint property should be set to 'legacy'.
59 if [ "`zfs get -H -o value mountpoint ${bootfs}`" != "legacy" ]; then
60 echo "The \"mountpoint\" property of dataset \"${bootfs}\" should be set to \"legacy\"." >&2
63 mountpoint=`df -t zfs "${bootfs}" 2>/dev/null | tail -1 | awk '{print $6}'`
64 if [ -z "${mountpoint}" ]; then
65 echo "The \"${bootfs}\" dataset is not mounted." >&2
68 if [ ! -d "${mountpoint}${startdir}" ]; then
69 echo "The \"${mountpoint}${startdir}\" directory doesn't exist." >&2
72 # To be able to mount root ZFS file system we need either /etc/fstab entry
73 # or vfs.root.mountfrom variable set in /boot/loader.conf.
74 egrep -q '^'"${bootfs}"'[[:space:]]+/[[:space:]]+zfs[[:space:]]+' "${mountpoint}/etc/fstab" 2>/dev/null
76 egrep -q 'vfs.root.mountfrom="?'"${bootfs}"'"?[[:space:]]*$' "${mountpoint}/boot/loader.conf" 2>/dev/null
78 echo "To be able to boot from \"${bootfs}\", you need to declare" >&2
79 echo "\"${bootfs}\" as being root file system in ${mountpoint}/etc/fstab" >&2
80 echo "or add \"vfs.root.mountfrom\" variable set to \"${bootfs}\" to" >&2
81 echo "${mountpoint}/boot/loader.conf." >&2
86 for vdev in `zpool status "${pool}" | grep ONLINE | awk '{print $1}'`; do
87 vdev="/dev/${vdev#/dev/}"
88 if [ -c "${vdev}" ]; then
89 if [ -z "${vdevs}" ]; then
92 vdevs="${vdevs} ${vdev}"
97 list0=`mktemp /tmp/zfsboottest.XXXXXXXXXX`
99 echo "Unable to create temporary file." >&2
102 list1=`mktemp /tmp/zfsboottest.XXXXXXXXXX`
103 if [ $? -ne 0 ]; then
104 echo "Unable to create temporary file." >&2
109 echo "zfsboottest.sh is reading all the files in ${mountpoint}${startdir} using"
110 echo "boot code and using file system code."
111 echo "It calculates MD5 checksums for all the files and will compare them."
112 echo "If all files can be properly read using boot code, it is very likely you"
113 echo "will be able to boot from \"${pool}\" pool>:> Good luck!"
116 "${zfsboottest}" ${vdevs} - `find "${mountpoint}${startdir}" -type f | sed "s@^${mountpoint}@@"` | egrep '^[0-9a-z]{32} /' | sort -k 2 >"${list0}"
117 find "${mountpoint}${startdir}" -type f | xargs md5 -r | sed "s@ ${mountpoint}@ @" | egrep '^[0-9a-z]{32} /' | sort -k 2 >"${list1}"
119 diff -u "${list0}" "${list1}"
122 rm -f "${list0}" "${list1}"
124 if [ $? -ne 0 ]; then
126 echo "You may not be able to boot." >&2