[1] | 1 | #!/bin/sh
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| 2 | #
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[1315] | 3 | # $Id: grub-MR 2956 2012-02-22 11:23:31Z bruno $
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[1] | 4 | #
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[1315] | 5 | # grub-MR ------ a rudimentary replacement for grub-install
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[1] | 6 | #
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[139] | 7 | #
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[1] | 8 |
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| 9 | Die() {
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| 10 | echo "$1" >> /dev/stderr
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| 11 | exit 1
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| 12 | }
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| 13 |
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| 14 |
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| 15 | FindBootPart() {
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| 16 | local i
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| 17 | bootpart=""
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| 18 | BOOTPATHNAME=""
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| 19 | for sz in /boot / ; do
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[2137] | 20 | bootpart=`grep " $sz " $2 | cut -d' ' -f1 | head -n1`
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| 21 | [ "$bootpart" ] && [ -e "/mnt/RESTORING/$bootpart" ] && break
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[1] | 22 | done
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| 23 | [ ! "$bootpart" ] && Die "Cannot find boot partition in mountlist"
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| 24 |
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| 25 | if [ "$sz" = "/boot" ] ; then
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[2137] | 26 | BOOTPATHNAME=/grub
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[1] | 27 | else
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[2137] | 28 | BOOTPATHNAME=/boot/grub
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[1] | 29 | fi
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| 30 | if [ -e "$MNT_RESTORING/boot/grub/stage1" ] ; then
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[2920] | 31 | echo "All right then."
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[2137] | 32 | return
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[1] | 33 | fi
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| 34 |
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| 35 | cd $MNT_RESTORING
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| 36 | for i in usr/lib/grub/* ; do
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[2137] | 37 | echo "Checking $i"
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[1] | 38 | if [ -e "$i/stage1" ] ; then
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[2137] | 39 | BOOTPATHNAME=/$i
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| 40 | mkdir -p /boot/grub
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| 41 | cp -au $i/* /boot/grub/
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| 42 | echo "BOOTPATHNAME is now $BOOTPATHNAME"
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| 43 | return 0
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| 44 | fi
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[1] | 45 | done
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| 46 | cd /
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| 47 | echo "Cannot find BOOTPATHNAME"
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| 48 | return 1
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| 49 | }
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| 50 |
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| 51 | FindPathOfRESTExe() {
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| 52 | local path
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| 53 | for path in /usr/sbin /usr/bin /usr/local/sbin /usr/local/bin \
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| 54 | /bin /sbin ; do
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| 55 | if [ -f "/mnt/RESTORING/$path/$1" ] ; then
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| 56 | echo "/mnt/RESTORING/$path/$1"
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| 57 | return
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| 58 | fi
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| 59 | done
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| 60 | which grub
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| 61 | }
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| 62 |
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| 63 |
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| 64 | try_grub_hack() {
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| 65 | local driveno extraline partno
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| 66 | driveno=$1
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| 67 | partno=$2
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| 68 | extraline="$3"
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| 69 |
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| 70 | echo -en "\
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[2615] | 71 | device (hd$driveno) $mbrdev\n\
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[1] | 72 | $extraline\n\
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| 73 | root (hd$driveno,$partno)\n\
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| 74 | setup (hd$driveno)\n\
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| 75 | quit \n" > /tmp/feed.txt
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| 76 | cat /tmp/feed.txt
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[139] | 77 | log_file=/tmp/grub.output
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[1] | 78 | if [ "$MNT_RESTORING" ] ; then
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[2615] | 79 | chroot $MNT_RESTORING grub --batch < /tmp/feed.txt > $log_file
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[1] | 80 | else
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[139] | 81 | grub --batch < /tmp/feed.txt > $log_file
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[1] | 82 | fi
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[139] | 83 | cat $log_file
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| 84 | if grep "Error [0-9]*: " $log_file >/dev/null; then
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| 85 | return 1
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| 86 | else
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| 87 | return 0
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| 88 | fi
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[1] | 89 | }
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| 90 |
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| 91 |
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| 92 | # ---------------------------------- main -----------------------------------
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| 93 |
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| 94 | if [ "$#" -ne "2" ] ; then
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| 95 | Die "grub-MR <MBR drive> <mountlist filename>; e.g. grub-MR /dev/hda /tmp/mountlist.txt"
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| 96 | fi
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| 97 | [ ! -f "$2" ] && Die "mountlist file not found"
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| 98 |
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| 99 | if [ -e "/mnt/RESTORING/boot" ] ; then
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| 100 | MNT_RESTORING=/mnt/RESTORING
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| 101 | else
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| 102 | MNT_RESTORING=""
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| 103 | fi
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| 104 |
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[2669] | 105 | # For some OpenSuSE
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| 106 | res=1
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[2615] | 107 | if [ "$MNT_RESTORING" ] ; then
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[2669] | 108 | if [ -x $MNT_RESTORING/usr/sbin/grub-install.unsupported ]; then
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| 109 | echo "Now I'll use grub-install.unsupported in chroot" >> $LOGFILE
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[2671] | 110 | chroot $MNT_RESTORING /usr/sbin/grub-install.unsupported $1 >> $LOGFILE 2>> $LOGFILE
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[2669] | 111 | res=$?
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| 112 | echo "grub-install.unsupported in chroot returned $res" >> $LOGFILE
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| 113 | fi
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[2615] | 114 | else
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[2669] | 115 | if [ -x /usr/sbin/grub-install.unsupported ]; then
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| 116 | echo "Now I'll use grub-install.unsupported locally" >> $LOGFILE
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[2671] | 117 | /usr/sbin/grub-install.unsupported $1 >> $LOGFILE 2>> $LOGFILE
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[2669] | 118 | res=$?
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| 119 | echo "grub-install.unsupported returned $res" >> $LOGFILE
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| 120 | fi
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[2615] | 121 | fi
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[375] | 122 | [ "$res" -eq "0" ] && exit 0
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| 123 |
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[2669] | 124 | echo "Now I'll use grub-install" >> $LOGFILE
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[2615] | 125 | if [ "$MNT_RESTORING" ] ; then
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[2671] | 126 | chroot $MNT_RESTORING grub-install $1 >> $LOGFILE 2>> $LOGFILE
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[2615] | 127 | res=$?
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| 128 | else
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[2671] | 129 | grub-install $1 >> $LOGFILE 2>> $LOGFILE
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[2615] | 130 | res=$?
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| 131 | fi
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[2669] | 132 | echo "grub-install returned $res" >> $LOGFILE
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[2615] | 133 | [ "$res" -eq "0" ] && exit 0
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| 134 |
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[2944] | 135 |
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| 136 | echo "Now I'll use grub2-install" >> $LOGFILE
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| 137 | if [ "$MNT_RESTORING" ] ; then
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| 138 | chroot $MNT_RESTORING grub2-install $1 >> $LOGFILE 2>> $LOGFILE
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| 139 | res=$?
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| 140 | else
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| 141 | grub2-install $1 >> $LOGFILE 2>> $LOGFILE
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| 142 | res=$?
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| 143 | fi
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| 144 | echo "grub2-install returned $res" >> $LOGFILE
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| 145 | [ "$res" -eq "0" ] && exit 0
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| 146 |
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[1] | 147 | echo "Trying a hack" >> $LOGFILE
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[2615] | 148 | FindBootPart $1 $2 2>&1 | tee -a $LOGFILE
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[2619] | 149 | mbrdev=`echo $1 | sed 's/\([^0-9]*\)[0-9]*$/\1/'`
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[2920] | 150 | if echo $mbrdev | grep "/cciss/" > /dev/null ; then
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| 151 | partno=`basename $mbrdev | cut -d'p' -f2`
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[2619] | 152 | mbrdev=`echo $mbrdev | cut -d'p' -f1`
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[2920] | 153 | elif echo $mbrdev | grep "/mapper/mpath" > /dev/null ; then
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| 154 | partno=`basename $mbrdev | cut -d'p' -f3`
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| 155 | mbrdev=`echo $mbrdev | cut -d'p' -f1-4`
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[1] | 156 | else
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[2920] | 157 | partno=`basename $mbrdev | sed 's/[a-z]*//'`
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[1] | 158 | fi
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| 159 | if [ ! "$partno" ] ; then
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| 160 | partno=0
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| 161 | else
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| 162 | partno=$(($partno-1))
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| 163 | fi
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[2920] | 164 | if echo $mbrdev | grep "/md" > /dev/null ; then
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[2615] | 165 | # FIXME: Why this if not used later
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[1] | 166 | base=`basename $bootpart`
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[273] | 167 | line=`grep $base /proc/mdstat | head -n1`
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[2615] | 168 | echo "mbrdev was $mbrdev" 2>&1 | tee -a $LOGFILE
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| 169 | mbrdev=`parted2fdisk -l | grep /dev/ | head -n1 | tr ':' ' ' | cut -d' ' -f2`
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| 170 | echo "mbrdev is $mbrdev" 2>&1 | tee -a $LOGFILE
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[1] | 171 | partno="0"; # cheating - FIXME
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| 172 | fi
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[2615] | 173 | echo ".............Cool." 2>&1 | tee -a $LOGFILE
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[1] | 174 |
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| 175 | grub=`FindPathOfRESTExe grub`
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| 176 | mkdir -p /boot
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| 177 | [ "$MNT_RESTORING" ] && ln -sf /mnt/RESTORING/boot/grub /boot/grub
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| 178 |
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| 179 | # ---------------------------------
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| 180 |
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| 181 | for driveno in 0 1 2 ; do
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| 182 | try_grub_hack $driveno $partno "" >> $LOGFILE 2>> $LOGFILE && break
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[2619] | 183 | try_grub_hack $driveno $partno "find $BOOTPATHNAME/stage1" >> $LOGFILE 2>> $LOGFILE && break
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[1] | 184 | done
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| 185 | res=$?
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| 186 | echo "Hack returned res=$res" >> $LOGFILE
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| 187 | [ "$res" -eq "0" ] && exit 0
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| 188 |
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| 189 | # ---------------------------------
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| 190 |
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| 191 | echo "Now I'll use grub-install.patched" >> $LOGFILE
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| 192 | cp -f `which grub-install.patched` /mnt/RESTORING/sbin
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[2671] | 193 | chroot /mnt/RESTORING grub-install.patched $1 >> $LOGFILE 2>> $LOGFILE
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[1] | 194 | res=$?
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| 195 | echo "grub-install.patched returned $res" >> $LOGFILE
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| 196 | [ "$res" -eq "0" ] && exit 0
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| 197 |
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| 198 | # ---------------------------------
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| 199 |
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[2449] | 200 | if [ -f "/mnt/RESTORING/boot/grub/menu.lst" ]; then
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[2619] | 201 | grep -vE '^#' /boot/grub/menu.lst > /mnt/RESTORING/tmp/grub.conf
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[2449] | 202 | elif [ -f "/mnt/RESTORING/boot/grub/grub.cfg" ]; then
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[2619] | 203 | grep -vE '^#' /boot/grub/grub.cfg > /mnt/RESTORING/tmp/grub.conf
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[2956] | 204 | elif [ -f "/mnt/RESTORING/boot/grub2/grub.cfg" ]; then
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| 205 | grep -vE '^#' /boot/grub2/grub.cfg > /mnt/RESTORING/tmp/grub.conf
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[2449] | 206 | else
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[2619] | 207 | echo "Unable to find Grub conf file" | tee -a $LOGFILE
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[2449] | 208 | exit -1
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| 209 | fi
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[2619] | 210 | echo "Trying to use the existing grub conf file in batch mode" >> $LOGFILE
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| 211 | cat /mnt/RESTORING/tmp/grub.conf >> $LOGFILE
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| 212 | chroot /mnt/RESTORING grub --batch < /mnt/RESTORING/tmp/grub.conf
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[1] | 213 | res=$?
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[2619] | 214 | echo "grub conf file approach returned $res" >> $LOGFILE
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| 215 | rm -f /mnt/RESTORING/tmp/grub.conf
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[1] | 216 | [ "$res" -eq "0" ] && exit 0
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| 217 |
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| 218 | echo "grub-MR returned res=$res" >> $LOGFILE
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| 219 |
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| 220 | exit $res
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