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      1 #!/bin/ksh -p
      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 #
     24 # Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     25 # Use is subject to license terms.
     26 #
     27 
     28 PATH="/usr/bin:/usr/sbin:${PATH}"; export PATH
     29 ALT_ROOT=
     30 
     31 while getopts R: OPT 2>/dev/null
     32 do
     33 	case $OPT in
     34 	R)	ALT_ROOT="$OPTARG"
     35 		;;
     36 	?)	echo "Usage: ${0##*/}: [-R \<root\>]"
     37 		;;
     38 	esac
     39 done
     40 
     41 ARCH=`uname -p`
     42 
     43 is_pcfs_boot=yes
     44 is_zfs_boot=no
     45 
     46 check_pcfs_boot()
     47 {
     48 	bootdev=`grep -v "^#" "$ALT_ROOT"/etc/vfstab | grep pcfs \
     49 	    | grep "[       ]/stubboot[      ]" | nawk '{print $1}'`
     50 	if [ X"$bootdev" = "X" ]; then
     51 		is_pcfs_boot=no
     52 	fi
     53 }
     54 
     55 check_zfs_boot()
     56 {
     57 	if [ -f "$ALT_ROOT"/etc/lu/GRUB_slice ]; then
     58 		dev=`grep '^PHYS_SLICE=' "$ALT_ROOT"/etc/lu/GRUB_slice |
     59 		    cut -d= -f2`
     60 		if [ "`fstyp $dev`" = "zfs" ]; then
     61 			is_zfs_boot=yes
     62 		fi
     63 	else
     64 		rootfstype=`df -n ${ALT_ROOT:-/} | awk '{print $3}'`
     65 		if [ "$rootfstype" = "zfs" ]; then
     66 			is_zfs_boot=yes
     67 		fi
     68 			
     69 	fi
     70 }
     71 
     72 #
     73 # Detect SVM root and return the list of raw devices under the mirror
     74 #
     75 get_rootdev_list()
     76 {
     77 	if [ -f "$ALT_ROOT"/etc/lu/GRUB_slice ]; then
     78 		dev=`grep '^PHYS_SLICE' "$ALT_ROOT"/etc/lu/GRUB_slice |
     79 		    cut -d= -f2`
     80 		if [ "$is_zfs_boot" = "yes" ]; then
     81 			fstyp -a "$dev" | grep 'path: ' | grep -v phys_path: | 
     82 			    cut -d"'" -f2 | sed 's+/dsk/+/rdsk/+'
     83 		else
     84 			echo "$dev"
     85 		fi
     86 		return
     87 	elif [ "$is_zfs_boot" = "yes" ]; then
     88 		rootpool=`df -k ${ALT_ROOT:-/} | tail +2 | cut -d/ -f1`
     89 		rootdevlist=`LC_ALL=C zpool iostat -v "$rootpool" | tail +5 |
     90 		    egrep -v "mirror|spare|replacing" |
     91 		    sed -n -e '/--/q' -e p | awk '{print $1}'`
     92 	else
     93 		metadev=`grep -v "^#" "$ALT_ROOT"/etc/vfstab | \
     94 		    grep "[	 ]/[ 	]" | nawk '{print $2}'`
     95 		if [[ $metadev = /dev/rdsk/* ]]; then
     96 			rootdevlist=`basename "$metadev"`
     97 		elif [[ $metadev = /dev/md/rdsk/* ]]; then
     98 			metavol=`basename "$metadev"`
     99 			rootdevlist=`metastat -p $metavol |\
    100 			    grep -v "^$metavol[	 ]" | nawk '{print $4}'`
    101 		fi
    102 	fi
    103 	for rootdev in $rootdevlist
    104 	do
    105 		echo /dev/rdsk/`basename $rootdev`
    106 	done
    107 }
    108 
    109 #
    110 # multiboot: install grub on the boot slice
    111 #
    112 install_grub()
    113 {
    114 	# Stage 2 blocks must remain untouched
    115 	STAGE1="$ALT_ROOT"/boot/grub/stage1
    116 	STAGE2="$ALT_ROOT"/boot/grub/stage2
    117 
    118 	if [ $is_pcfs_boot = yes ]; then
    119 		#
    120 		# Note: /stubboot/boot/grub/stage2 must stay untouched.
    121 		#
    122 		mkdir -p "$ALT_ROOT"/stubboot/boot/grub
    123 		cp "$ALT_ROOT"/boot/grub/menu.lst "$ALT_ROOT"/stubboot/boot/grub
    124 		bootdev=`grep -v "^#" "$ALT_ROOT"/etc/vfstab | grep pcfs | \
    125 			grep "[	 ]/stubboot[ 	]" | nawk '{print $1}'`
    126 		rpcfsdev=`echo "$bootdev" | sed -e "s/dev\/dsk/dev\/rdsk/"`
    127 		if [ X"$rpcfsdev" != X ]; then
    128 			print "Installing grub on $rpcfsdev"
    129 			"$ALT_ROOT"/sbin/installgrub $STAGE1 $STAGE2 $rpcfsdev
    130 		fi
    131 	fi
    132 
    133 	grubdevlist=`get_rootdev_list`
    134 	zfsarg=""
    135 	if [ "$is_zfs_boot" = "yes" ]; then
    136 		zfsarg="-Z"
    137 	fi
    138 
    139 	for rootdev in $grubdevlist
    140 	do
    141 		if [ X"$rpcfsdev" != X ]; then
    142 			echo "create GRUB menu in "$ALT_ROOT"/stubboot"
    143 			"$ALT_ROOT"/sbin/bootadm update-menu $zfsarg\
    144 			    -R "$ALT_ROOT"/stubboot -o $rootdev,"$ALT_ROOT"
    145 		else
    146 			echo "Creating GRUB menu in ${ALT_ROOT:-/}"
    147 			$ALT_ROOT/sbin/bootadm update-menu -R ${ALT_ROOT:-/} \
    148 			    $zfsarg -o $rootdev
    149 		fi
    150 		print "Installing grub on $rootdev"
    151 		"$ALT_ROOT"/sbin/installgrub $STAGE1 $STAGE2 $rootdev
    152 	done
    153 }
    154 
    155 if [ -f "$ALT_ROOT"/platform/i86pc/multiboot -a "$ARCH" = i386 ] ; then
    156 	check_pcfs_boot
    157 	check_zfs_boot
    158 	install_grub
    159 fi
    160 
    161 exit 0
    162