1 #!/sbin/sh
2 #
3 # CDDL HEADER START
4 #
5 # The contents of this file are subject to the terms of the
6 # Common Development and Distribution License (the "License").
7 # You may not use this file except in compliance with the License.
8 #
9 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 # or http://www.opensolaris.org/os/licensing.
11 # See the License for the specific language governing permissions
12 # and limitations under the License.
13 #
14 # When distributing Covered Code, include this CDDL HEADER in each
15 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 # If applicable, add the following below this CDDL HEADER, with the
17 # fields enclosed by brackets "[]" replaced with your own identifying
18 # information: Portions Copyright [yyyy] [name of copyright owner]
19 #
20 # CDDL HEADER END
21 #
22 #
23 # Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
24 #
25
26 . /lib/svc/share/fs_include.sh
27 . /lib/svc/share/net_include.sh
28
29 # Make sure that the essential libraries can be found.
30 LD_LIBRARY_PATH=/lib; export LD_LIBRARY_PATH
31 STMSBOOTUTIL=/lib/mpxio/stmsboot_util
32 SAVEDIR=/etc/mpxio
33 BOOTDEVICES=$SAVEDIR/boot-devices
34 RECOVERFILE=$SAVEDIR/recover_instructions
35 DEVFSADM=/usr/sbin/devfsadm
36 DUMPADM=/usr/sbin/dumpadm
37 METADEVADM=/usr/sbin/metadevadm
38 ISROOTDEV=""
39 ISROOTDEVPATH=""
40 usrmounted=0
41 UNAME=/usr/bin/uname
42 ECHO=/usr/bin/echo
43 CAT=/usr/bin/cat
44 CP=/usr/bin/cp
45 DF=/usr/bin/df
46 LS=/usr/bin/ls
47 RM=/usr/bin/rm
48 EGREP=/usr/bin/egrep
49 SED=/usr/bin/sed
50 ZPOOL=/usr/sbin/zpool
51 AWK=/usr/bin/awk
52 MOUNT=/sbin/mount
53 UMOUNT=/sbin/mount
54 EEPROM=/usr/sbin/eeprom
55 BOOTADM=/usr/sbin/bootadm
56 SVCADM=/usr/sbin/svcadm
57 REBOOT=/usr/sbin/reboot
58
59 mpxio_error()
60 {
61 cecho "\nERROR: stmsboot: $1"
62 #
63 # display recovery instructions - the first call logs to the service
64 # log and the second call displays on the console.
65 #
66 shcat $RECOVERFILE
67 shcat $RECOVERFILE >/dev/msglog 2>&1
68 cecho "These instructions were also logged to the file $RECOVERFILE\n"
69 }
70
71 #
72 # root ("/") is already mounted read only by the kernel.
73 # Remount the root read-write.
74 #
75 mpxio_mount_root()
76 {
77 HASZFSROOT=`$DF -g / |grep zfs`
78 RVAL=""
79
80 # In single-user maintenance mode, we don't have a writable
81 # root partition, so we _cannot_ use devlinks. Therefore we
82 # have to do some dancing - first mount the physical path
83 # read-write, then re-run $STMSBOOTUTIL to get the real
84 # devlink mapping, and then re-mount the root slice. Of course,
85 # if we all used ZFS this wouldn't be such a pain!
86 exec < $vfstab; readvfstab /
87 # ZFS root environments should _not_ have an entry for /
88 # in their /etc/vfstab.
89 if [ -n "$special" ]; then
90 # sanity check for ZFSRoot _and_ / in /etc/vfstab
91 if [ -n "$HASZFSROOT" ]; then
92 # ERROR - this would cause a failure later
93 # so let root know about it now and provide
94 # a chance to handle it before filesystem/usr
95 cecho "stmsboot: System has ZFS Root *and* an entry for / in /etc/vfstab\nstmsboot: Please remove the / entry from /etc/vfstab and then run\n# svcadm clear mpxio-upgrade"
96 exit 1
97 fi
98 ISPHYS=`echo $special |$AWK '/^\/dev\/dsk/ {print}'`;
99 if [ -z "$ISPHYS" ]; then
100 # a metadevice, either /dev/md or /dev/vx
101 new_special=$special
102 $MOUNT -o remount,rw $new_special / >/dev/msglog 2>&1
103 else
104 new_special=`$STMSBOOTUTIL -m $special`
105 if [ "$new_special" = "NOT_MAPPED" ]; then
106 # this is a bad state to be in, exit
107 cecho "Error: Your root device is not mapped."
108 exit 1
109 fi
110 checkopt "llock" $mntopts
111 mntopts='remount'
112 [ -n "$otherops" ] && mntopts="${mntopts},${otherops}"
113 RVAL=`$MOUNT -m -F $fstype -o $mntopts $new_special \
114 $mountp >/dev/msglog 2>&1`
115 # if we've got active-active paths to our rootvp and
116 # the first path returned by $STMSBOOTUTIL is not the
117 # same as the one we booted from, then we need some
118 # handwaving due to restrictions in the ufs module
119 # (see the remountfs() function in
120 # $SRC/uts/common/fs/ufs/ufs_vfsops.c)
121 if [ $? -eq 0 ]; then
122 # now re-run $STMSBOOTUTIL to get the real
123 # mapping for this device
124 new_special=`$STMSBOOTUTIL -m $special`
125 # mount root for real
126 $MOUNT -o remount,rw $new_special / \
127 >/dev/msglog 2>&1
128 else
129 for device in `$CAT $BOOTDEVICES`; do
130 new_special="/devices${device}"
131 $MOUNT -m -F $fstype -o $mntopts \
132 $new_special $mountp >/dev/msglog 2>&1
133 if [ $? -eq 0 ]; then
134 # success, break out
135 ISROOTDEVPATH=`$ECHO $device | \
136 $AWK -F":" '{print $1}'`
137 break;
138 fi
139 done
140 if [ -n "$RVAL" ]; then
141 cecho "Error: Unable to remount your root device"
142 exit 1;
143 fi
144 fi
145 fi
146 else
147 if [ -z "$HASZFSROOT" ]; then
148 cecho "stmsboot: Error: your root slice is invalid"
149 exit 1
150 else
151 cecho "stmsboot: Root is on ZFS"
152 fi
153 fi
154 }
155
156 #
157 # mount /usr read only
158 #
159 mpxio_mount_usr()
160 {
161 exec < $vfstab; readvfstab "/usr"
162 ret_val=0
163 if [ -n "$mountp" ]; then
164 case "$special" in
165 /dev/md/*)
166 new_special=$special
167 ;;
168 /dev/vx/*)
169 new_special=$special
170 ;;
171 *)
172 new_special=`$STMSBOOTUTIL -m $special`
173 ;;
174 esac
175
176 if [ "$fstype" = "cachefs" ]; then
177 # Mount read-only without the cache.
178 case "$mntopts" in
179 *backfstype=nfs*)
180 cfsbacktype=nfs
181 ;;
182 *backfstype=hsfs*)
183 cfsbacktype=hsfs
184 ;;
185 *)
186 cecho 'stmsboot: invalid vfstab entry for /usr'
187 cfsbacktype=nfs
188 ;;
189 esac
190 # see the comment below for /dev/null
191 $MOUNT -m -F $cfsbacktype -o ro $new_special $mountp \
192 >/dev/null 2>&1
193 ret_val=$?
194 else
195 #
196 # Must use -o largefiles here to ensure the read-only
197 # mount does not fail as a result of having a large
198 # file present on /usr.
199 #
200 if [ "$mntopts" = "-" ]; then
201 mntopts='ro,largefiles'
202 else
203 checkopt largefiles $mntopts
204 if [ "$option" != "largefiles" ]; then
205 mntopts="largefiles,$mntopts"
206 fi
207
208 checkopt ro $mntopts
209 if [ "$option" != "ro" ]; then
210 mntopts="ro,$mntopts"
211 fi
212
213 # Requesting logging on a read-only mount
214 # causes errors to be displayed, so remove
215 # "logging" from the list of options.
216 checkopt logging $mntopts
217 if [ "$option" = "logging" ]; then
218 mntopts="$otherops"
219 fi
220 fi
221
222 # In case of a manual restart of the service, mount
223 # will emit messages if /usr is already mounted.
224 # So redirect the output to /dev/null.
225 $MOUNT -m -F $fstype -o $mntopts $new_special /usr \
226 >/dev/null 2>&1
227 ret_val=$?
228 fi
229 if [ $ret_val -eq 0 ]; then
230 usrmounted=1
231 fi
232 fi
233
234 return $ret_val
235 }
236
237 # update system dump configuration
238 update_dumpconf()
239 {
240 # Disable device-in-use checking (done in libdiskmgt).
241 # Without disabling this check, the configuration of dump device
242 # would fail as the device-in-use code incorrectly concludes that
243 # the device is in use and hence prevents configuration of the dump
244 # device.
245 NOINUSE_CHECK=1
246 export NOINUSE_CHECK
247
248 DUMPISZFS=`$AWK -F"=" '/DUMPADM_DEVICE/ {print $2}' /etc/dumpadm.conf|$EGREP zvol`
249 if [ -z "$DUMPISZFS" ]; then
250 set -- `$DUMPADM -u 2>&1 | $EGREP 'cannot use /dev.* as dump device'`
251 if [ -n "$4" ]; then
252 newname=`$STMSBOOTUTIL -m $4`
253 if [ $? -eq 0 ]; then
254 if $DUMPADM -d $newname > /dev/msglog 2> /dev/console; then
255 cecho "stmsboot: dump configuration \
256 has been updated."
257 else
258 mpxio_error "failed to configure \
259 the dump device.\nold \
260 dump device name: $4"
261 return 1
262 fi
263 fi
264 fi
265 else
266 # make sure we can get to it, force zfs to load fully
267 $LS $DUMPISZFS >>/dev/null 2>&1
268 cecho "stmsboot: dump on ZFS, no dumpadm update required"
269 fi
270 return 0
271 }
272
273 # Update bootpath for x86 here when we are enabling mpxio on root
274 update_bootpath()
275 {
276 cur_bootpath=`$STMSBOOTUTIL -b`
277 if [ $? -ne 0 ]; then
278 cecho "stmsboot: ERROR! Unable to retrieve bootpath property\n"
279 exit 1
280 fi
281
282 # Since on x64 platforms the eeprom command doesn't update the
283 # kernel, the file /boot/solaris/bootenv.rc and the kernel's
284 # bootpath variable have a good chance of differing. We do some
285 # extra handwaving to get the correct bootpath variable setting.
286
287 ONDISKVER=`$AWK '/bootpath/ {print $3}' /boot/solaris/bootenv.rc|\
288 $SED -e"s,',,g"`
289 if [ "$ONDISKVER" != "$cur_bootpath" ]; then
290 cur_bootpath="$ONDISKVER"
291 fi
292
293 NEWBOOTPATH=""
294 for path in $cur_bootpath; do
295 mapped=`$STMSBOOTUTIL -p $path`
296 if [ "$mapped" != "NOT_MAPPED" ]; then
297 if [ "$mapped" != "$path" ]; then
298 NEWBOOTPATH=`echo "$path " | \
299 $SED -e"s|$path|$mapped|"`" $NEWBOOTPATH"
300 else
301 NEWBOOTPATH="$NEWBOOTPATH $path"
302 fi
303 fi
304 done
305 # now strip off leading and trailing space chars
306 new_bootpath=`echo $NEWBOOTPATH`
307 $EEPROM bootpath="$new_bootpath"
308 cecho "stmsboot: bootpath has been updated"
309 cecho ""
310 }
311
312 # Now do the actual work
313 mpxio_main()
314 {
315 # NOTE: If the first attempt to run the service has failed due to an
316 # expected error, users should be able to manually rerun the service.
317 #
318 # First mount /usr read only. This must be done to run
319 # utilities such as fsck and devfsadm.
320 # In the case of a manual rerun of the service, mounting of /usr here
321 # fails if /usr already happens to be mounted. It is better that we
322 # do not mount /usr if already mounted, but there seems to be no
323 # apparent way to check whether /usr is mounted or not as we mount
324 # /usr without making an entry into /etc/mnttab. So instead of
325 # explicitly checking for mount failures, we just do a sanity check
326 # by looking for some file (in this case devfsadm) in /usr.
327 #
328 mpxio_mount_usr
329 if [ ! -s $DEVFSADM ]; then
330 mpxio_error "failed to mount the /usr filesystem."
331 return
332 fi
333
334 if mpxio_mount_root; then
335 # create /dev links
336 cecho "stmsboot: configuring devices"
337 $DEVFSADM
338
339 if [ -n "$ISROOTDEVPATH" ]; then
340 ISROOTDEV=`$STMSBOOTUTIL -o $ISROOTDEVPATH`
341 fi
342
343 # update /etc/vfstab to reflect device name changes
344 $STMSBOOTUTIL -u >/dev/msglog 2>&1
345 if [ $? -eq 0 ]; then
346 $CP /etc/vfstab /etc/vfstab.old
347 # handle active-active paths, where the probe order
348 # for the hba reports a different path to what the
349 # boot-device variable gives us
350 if [ -n "$ISROOTDEV" ]; then
351 ROOTDEVCHK=`grep $ISROOTDEV /etc/vfstab`
352 if [ $? -ne 0 ]; then
353 # we got a different path for root
354 exec < $SAVEDIR/vfstab.new; readvfstab /
355 FILEDEV=`$ECHO $special | \
356 $SED -e"s,/dev/dsk/,," -e"s,s[0-9]*,,"`
357 $SED -e"s,$FILEDEV,$ISROOTDEV,g" < \
358 $SAVEDIR/vfstab.new > /etc/vfstab
359 fi
360 else
361 $CP $SAVEDIR/vfstab.new /etc/vfstab
362 fi
363 $RM $SAVEDIR/vfstab.new
364 cecho ""
365 cecho "stmsboot: vfstab has been updated"
366
367 if update_dumpconf; then
368 # update svm configuration to reflect new names
369 if [ -s /kernel/drv/md.conf ] && \
370 [ -x $METADEVADM ]; then
371 $METADEVADM -r >/dev/msglog 2>&1
372 fi
373 fi
374
375 MACH=`$UNAME -p`
376 if [ "$MACH" = "i386" ]; then
377 # only update bootpath here for x86
378 update_bootpath
379 fi
380 cecho "stmsboot: now regenerating boot archive"
381 $BOOTADM update-archive
382 else
383 mpxio_error "failed to update /etc/vfstab."
384 fi
385
386 $SVCADM disable system/device/mpxio-upgrade
387
388 if [ $usrmounted -eq 1 ]; then
389 cecho "stmsboot: rebooting the system now."
390 $REBOOT
391 fi
392 else
393 mpxio_error "failed to mount the root filesystem."
394 fi
395 }
396
397 mpxio_main