usr/src/cmd/boot/scripts/update_grub.ksh

   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 # Copyright 2016 Nexenta Systems, Inc.
  27 #
  28
  29 PATH="/usr/bin:/usr/sbin:${PATH}"; export PATH
  30 ALT_ROOT=
  31
  32 while getopts R: OPT 2>/dev/null
  33 do
  34         case $OPT in
  35         R)      ALT_ROOT="$OPTARG"
  36                 ;;
  37         ?)      echo "Usage: ${0##*/}: [-R \<root\>]"
  38                 ;;
  39         esac
  40 done
  41
  42 ARCH=`uname -p`
  43
  44 is_pcfs_boot=yes
  45 is_zfs_boot=no
  46
  47 check_pcfs_boot()
  48 {
  49         bootdev=`grep -v "^#" "$ALT_ROOT"/etc/vfstab | grep pcfs \
  50             | grep "[       ]/stubboot[      ]" | nawk '{print $1}'`
  51         if [ X"$bootdev" = "X" ]; then
  52                 is_pcfs_boot=no
  53         fi
  54 }
  55
  56 check_zfs_boot()
  57 {
  58         if [ -f "$ALT_ROOT"/etc/lu/GRUB_slice ]; then
  59                 dev=`grep '^PHYS_SLICE=' "$ALT_ROOT"/etc/lu/GRUB_slice |
  60                     cut -d= -f2`
  61                 if [ "`fstyp $dev`" = "zfs" ]; then
  62                         is_zfs_boot=yes
  63                 fi
  64         else
  65                 rootfstype=`df -n ${ALT_ROOT:-/} | awk '{print $3}'`
  66                 if [ "$rootfstype" = "zfs" ]; then
  67                         is_zfs_boot=yes
  68                 fi
  69
  70         fi
  71 }
  72
  73 #
  74 # Return the list of raw devices
  75 #
  76 get_rootdev_list()
  77 {
  78         if [ -f "$ALT_ROOT"/etc/lu/GRUB_slice ]; then
  79                 dev=`grep '^PHYS_SLICE' "$ALT_ROOT"/etc/lu/GRUB_slice |
  80                     cut -d= -f2`
  81                 if [ "$is_zfs_boot" = "yes" ]; then
  82                         fstyp -a "$dev" | grep 'path: ' | grep -v phys_path: |
  83                             cut -d"'" -f2 | sed 's+/dsk/+/rdsk/+'
  84                 else
  85                         echo "$dev"
  86                 fi
  87                 return
  88         elif [ "$is_zfs_boot" = "yes" ]; then
  89                 rootpool=`df -k ${ALT_ROOT:-/} | tail +2 | cut -d/ -f1`
  90                 rootdevlist=`LC_ALL=C zpool iostat -v "$rootpool" | tail +5 |
  91                     egrep -v "mirror|spare|replacing" |
  92                     sed -n -e '/--/q' -e p | awk '{print $1}'`
  93         else
  94                 dev=`grep -v "^#" "$ALT_ROOT"/etc/vfstab | \
  95                     grep "[      ]/[    ]" | nawk '{print $2}'`
  96                 if [[ $dev = /dev/rdsk/* ]]; then
  97                         rootdevlist=`basename "$dev"`
  98                 fi
  99         fi
 100         for rootdev in $rootdevlist
 101         do
 102                 echo /dev/rdsk/`basename $rootdev`
 103         done
 104 }
 105
 106 #
 107 # multiboot: install grub on the boot slice
 108 #
 109 install_grub()
 110 {
 111         # Stage 2 blocks must remain untouched
 112         STAGE1="$ALT_ROOT"/boot/grub/stage1
 113         STAGE2="$ALT_ROOT"/boot/grub/stage2
 114
 115         if [ $is_pcfs_boot = yes ]; then
 116                 #
 117                 # Note: /stubboot/boot/grub/stage2 must stay untouched.
 118                 #
 119                 mkdir -p "$ALT_ROOT"/stubboot/boot/grub
 120                 cp "$ALT_ROOT"/boot/grub/menu.lst "$ALT_ROOT"/stubboot/boot/grub
 121                 bootdev=`grep -v "^#" "$ALT_ROOT"/etc/vfstab | grep pcfs | \
 122                         grep "[  ]/stubboot[    ]" | nawk '{print $1}'`
 123                 rpcfsdev=`echo "$bootdev" | sed -e "s/dev\/dsk/dev\/rdsk/"`
 124                 if [ X"$rpcfsdev" != X ]; then
 125                         print "Installing grub on $rpcfsdev"
 126                         "$ALT_ROOT"/sbin/installgrub $STAGE1 $STAGE2 $rpcfsdev
 127                 fi
 128         fi
 129
 130         grubdevlist=`get_rootdev_list`
 131         zfsarg=""
 132         if [ "$is_zfs_boot" = "yes" ]; then
 133                 zfsarg="-Z"
 134         fi
 135
 136         for rootdev in $grubdevlist
 137         do
 138                 if [ X"$rpcfsdev" != X ]; then
 139                         echo "create GRUB menu in "$ALT_ROOT"/stubboot"
 140                         "$ALT_ROOT"/sbin/bootadm update-menu $zfsarg\
 141                             -R "$ALT_ROOT"/stubboot -o $rootdev,"$ALT_ROOT"
 142                 else
 143                         echo "Creating GRUB menu in ${ALT_ROOT:-/}"
 144                         $ALT_ROOT/sbin/bootadm update-menu -R ${ALT_ROOT:-/} \
 145                             $zfsarg -o $rootdev
 146                 fi
 147                 print "Installing grub on $rootdev"
 148                 "$ALT_ROOT"/sbin/installgrub $STAGE1 $STAGE2 $rootdev
 149         done
 150 }
 151
 152 if [ -f "$ALT_ROOT"/platform/i86pc/multiboot -a "$ARCH" = i386 ] ; then
 153         check_pcfs_boot
 154         check_zfs_boot
 155         install_grub
 156 fi
 157
 158 exit 0