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 2009 Sun Microsystems, Inc. All rights reserved. 24# Use is subject to license terms. 25# 26 27. /lib/svc/share/fs_include.sh 28. /lib/svc/share/net_include.sh 29 30# Make sure that the essential libraries can be found. 31LD_LIBRARY_PATH=/lib; export LD_LIBRARY_PATH 32STMSBOOTUTIL=/lib/mpxio/stmsboot_util 33SAVEDIR=/etc/mpxio 34BOOTDEVICES=$SAVEDIR/boot-devices 35RECOVERFILE=$SAVEDIR/recover_instructions 36DEVFSADM=/usr/sbin/devfsadm 37DUMPADM=/usr/sbin/dumpadm 38METADEVADM=/usr/sbin/metadevadm 39ISROOTDEV="" 40usrmounted=0 41UNAME=/usr/bin/uname 42ECHO=/usr/bin/echo 43CAT=/usr/bin/cat 44CP=/usr/bin/cp 45DF=/usr/bin/df 46LS=/usr/bin/ls 47RM=/usr/bin/rm 48EGREP=/usr/bin/egrep 49SED=/usr/bin/sed 50ZPOOL=/usr/sbin/zpool 51AWK=/usr/bin/awk 52MOUNT=/sbin/mount 53UMOUNT=/sbin/mount 54EEPROM=/usr/sbin/eeprom 55BOOTADM=/usr/sbin/bootadm 56SVCADM=/usr/sbin/svcadm 57REBOOT=/usr/sbin/reboot 58 59mpxio_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 $RECOVERFILE\n" 69} 70 71# 72# root ("/") is already mounted read only by the kernel. 73# Remount the root read-write. 74# 75mpxio_mount_root() 76{ 77 HASZFSROOT=`$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 $new_special / \ 127 >/dev/msglog 2>&1 128 else 129 SLICE=`$ECHO $special | $AWK -F"s" '{print $3}'` 130 for device in `$CAT $BOOTDEVICES`; do 131 new_special="${device}s${SLICE}" 132 $MOUNT -m -F $fstype -o $mntopts \ 133 $new_special $mountp >/dev/msglog 2>&1 134 if [ $? -eq 0 ]; then 135 # success, break out 136 ISROOTDEV=`$ECHO $new_special | 137 $SED -e "s,/dev/dsk/,,"` 138 break; 139 fi 140 done 141 if [ -n "$RVAL" ]; then 142 cecho "Error: Unable to remount your root device" 143 exit 1; 144 fi 145 fi 146 fi 147 else 148 if [ -z "$HASZFSROOT" ]; then 149 cecho "stmsboot: Error: your root slice is invalid" 150 exit 1 151 else 152 cecho "stmsboot: Root is on ZFS" 153 fi 154 fi 155} 156 157# 158# mount /usr read only 159# 160mpxio_mount_usr() 161{ 162 exec < $vfstab; readvfstab "/usr" 163 ret_val=0 164 if [ -n "$mountp" ]; then 165 new_special=`$STMSBOOTUTIL -m $special` 166 167 if [ "$fstype" = "cachefs" ]; then 168 # Mount read-only without the cache. 169 case "$mntopts" in 170 *backfstype=nfs*) 171 cfsbacktype=nfs 172 ;; 173 *backfstype=hsfs*) 174 cfsbacktype=hsfs 175 ;; 176 *) 177 cecho 'stmsboot: invalid vfstab entry for /usr' 178 cfsbacktype=nfs 179 ;; 180 esac 181 # see the comment below for /dev/null 182 $MOUNT -m -F $cfsbacktype -o ro $new_special $mountp \ 183>/dev/null 2>&1 184 ret_val=$? 185 else 186 # 187 # Must use -o largefiles here to ensure the read-only 188 # mount does not fail as a result of having a large 189 # file present on /usr. 190 # 191 if [ "$mntopts" = "-" ]; then 192 mntopts='ro,largefiles' 193 else 194 checkopt largefiles $mntopts 195 if [ "$option" != "largefiles" ]; then 196 mntopts="largefiles,$mntopts" 197 fi 198 199 checkopt ro $mntopts 200 if [ "$option" != "ro" ]; then 201 mntopts="ro,$mntopts" 202 fi 203 204 # Requesting logging on a read-only mount 205 # causes errors to be displayed, so remove 206 # "logging" from the list of options. 207 checkopt logging $mntopts 208 if [ "$option" = "logging" ]; then 209 mntopts="$otherops" 210 fi 211 fi 212 213 # In case of a manual restart of the service, mount 214 # will emit messages if /usr is already mounted. 215 # So redirect the output to /dev/null. 216 $MOUNT -m -F $fstype -o $mntopts $new_special /usr \ 217>/dev/null 2>&1 218 ret_val=$? 219 fi 220 if [ $ret_val -eq 0 ]; then 221 usrmounted=1 222 fi 223 fi 224 225 return $ret_val 226} 227 228# update system dump configuration 229update_dumpconf() 230{ 231 # Disable device-in-use checking (done in libdiskmgt). 232 # Without disabling this check, the configuration of dump device 233 # would fail as the device-in-use code incorrectly concludes that 234 # the device is in use and hence prevents configuration of the dump 235 # device. 236 NOINUSE_CHECK=1 237 export NOINUSE_CHECK 238 239 DUMPISZFS=`$AWK -F"=" '/DUMPADM_DEVICE/ {print $2}' /etc/dumpadm.conf|$EGREP zvol` 240 if [ -z "$DUMPISZFS" ]; then 241 set -- `$DUMPADM -u 2>&1 | $EGREP 'cannot use /dev.* as dump device'` 242 if [ -n "$4" ]; then 243 newname=`$STMSBOOTUTIL -m $4` 244 if [ $? -eq 0 ]; then 245 if $DUMPADM -d $newname > /dev/msglog 2> /dev/console; then 246 cecho "stmsboot: dump configuration \ 247 has been updated." 248 else 249 mpxio_error "failed to configure \ 250 the dump device.\nold \ 251 dump device name: $4" 252 return 1 253 fi 254 fi 255 fi 256 else 257 # make sure we can get to it, force zfs to load fully 258 $LS $DUMPISZFS >>/dev/null 2>&1 259 cecho "stmsboot: dump on ZFS, no dumpadm update required" 260 fi 261 return 0 262} 263 264# Update bootpath for x86 here when we are enabling mpxio on root 265update_bootpath() 266{ 267 cur_bootpath=`$STMSBOOTUTIL -b` 268 if [ $? -ne 0 ]; then 269 cecho "stmsboot: ERROR! Unable to retrieve bootpath property\n" 270 exit 1 271 fi 272 273 # Since on x64 platforms the eeprom command doesn't update the 274 # kernel, the file /boot/solaris/bootenv.rc and the kernel's 275 # bootpath variable have a good chance of differing. We do some 276 # extra handwaving to get the correct bootpath variable setting. 277 278 ONDISKVER=`$AWK '/bootpath/ {print $3}' /boot/solaris/bootenv.rc|\ 279 $SED -e"s,',,g"` 280 if [ "$ONDISKVER" != "$cur_bootpath" ]; then 281 cur_bootpath="$ONDISKVER" 282 fi 283 284 NEWBOOTPATH="" 285 for path in $cur_bootpath; do 286 mapped=`$STMSBOOTUTIL -p $path` 287 if [ "$mapped" != "NOT_MAPPED" ]; then 288 if [ "$mapped" != "$path" ]; then 289 NEWBOOTPATH=`echo "$path " | \ 290 $SED -e"s|$path|$mapped|"`" $NEWBOOTPATH" 291 else 292 NEWBOOTPATH="$NEWBOOTPATH $path" 293 fi 294 fi 295 done 296 # now strip off leading and trailing space chars 297 new_bootpath=`echo $NEWBOOTPATH` 298 $EEPROM bootpath="$new_bootpath" 299 cecho "stmsboot: bootpath has been updated" 300 cecho "" 301} 302 303# Now do the actual work 304mpxio_main() 305{ 306 # NOTE: If the first attempt to run the service has failed due to an 307 # expected error, users should be able to manually rerun the service. 308 # 309 # First mount /usr read only. This must be done to run 310 # utilities such as fsck and devfsadm. 311 # In the case of a manual rerun of the service, mounting of /usr here 312 # fails if /usr already happens to be mounted. It is better that we 313 # do not mount /usr if already mounted, but there seems to be no 314 # apparent way to check whether /usr is mounted or not as we mount 315 # /usr without making an entry into /etc/mnttab. So instead of 316 # explicitly checking for mount failures, we just do a sanity check 317 # by looking for some file (in this case devfsadm) in /usr. 318 # 319 mpxio_mount_usr 320 if [ ! -s $DEVFSADM ]; then 321 mpxio_error "failed to mount the /usr filesystem." 322 return 323 fi 324 325 if mpxio_mount_root; then 326 # create /dev links 327 cecho "stmsboot: configuring devices" 328 $DEVFSADM 329 330 # update /etc/vfstab to reflect device name changes 331 $STMSBOOTUTIL -u >/dev/msglog 2>&1 332 if [ $? -eq 0 ]; then 333 $CP /etc/vfstab /etc/vfstab.old 334 # handle active-active paths, where the probe order 335 # for the hba reports a different path to what the 336 # boot-device variable gives us 337 if [ -n "$ISROOTDEV" ]; then 338 ROOTDEVCHK=`grep $ISROOTDEV /etc/vfstab` 339 if [ $? -ne 0 ]; then 340 # we got a different path for root 341 exec < $SAVEDIR/vfstab.new; readvfstab / 342 FILEDEV=`$ECHO $special | \ 343 $SED -e"s,/dev/dsk/,,"` 344 $SED -e"s,$FILEDEV,$ISROOTDEV,g" < \ 345 $SAVEDIR/vfstab.new > /etc/vfstab 346 fi 347 else 348 $CP $SAVEDIR/vfstab.new /etc/vfstab 349 fi 350 $RM $SAVEDIR/vfstab.new 351 cecho "" 352 cecho "stmsboot: vfstab has been updated" 353 354 update_dumpconf 355 356 MACH=`$UNAME -p` 357 if [ "$MACH" = "i386" ]; then 358 # only update bootpath here for x86 359 update_bootpath 360 fi 361 cecho "stmsboot: now regenerating boot archive" 362 $BOOTADM update-archive 363 else 364 mpxio_error "failed to update /etc/vfstab." 365 fi 366 367 $SVCADM disable system/device/mpxio-upgrade 368 369 if [ $usrmounted -eq 1 ]; then 370 cecho "stmsboot: rebooting the system now." 371 $REBOOT 372 fi 373 else 374 mpxio_error "failed to mount the root filesystem." 375 fi 376} 377 378mpxio_main 379