[1] | 1 | #!/bin/sh
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| 2 | #
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[1315] | 3 | # $Id: stabgrub-me 1448 2007-05-18 00:51:49Z bruno $
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[1] | 4 | #
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| 5 | #####################################################################
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| 6 |
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| 7 |
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| 8 | QuitIfNotFound() {
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| 9 | if [ ! -f "$1" ] ; then
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[1448] | 10 | LogIt "(stabgrub-me) Where's $1? I cannot continue." 1
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| 11 | exit 1
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[1] | 12 | fi
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| 13 | }
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| 14 |
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| 15 |
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| 16 |
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| 17 |
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| 18 |
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| 19 | LocateOldFstab() {
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| 20 | old_fstab=""
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| 21 | old_grubconf=""
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| 22 | if [ -f "/mnt/RESTORING/etc/fstab" ] ; then
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| 23 | LogIt "No need for fstab search." 2
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| 24 | # fstab_list=/mnt/RESTORING/etc/fstab
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[1001] | 25 | old_fstab=/mnt/RESTORING/etc/fstab
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| 26 | old_grubconf=/mnt/RESTORING/etc/grub.conf
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[827] | 27 | # For some distros, e.g. Debian, /etc/grub.conf is a symbolic link
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[1001] | 28 | # which we need to resolve and prepend with /mnt/RESTORING because
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| 29 | # we run this outside the chroot.
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| 30 | if [ -L "$old_grubconf" ] ; then
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[1448] | 31 | l=`readlink "$old_grubconf"`
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| 32 | if [ _"`echo $l | cut -c1`" = _"/" ]; then
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| 33 | # If readlink gives an absolute path it's related to the chroot
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| 34 | old_grubconf=/mnt/RESTORING/$l
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| 35 | else
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| 36 | # If readlink gives a relative path, it's in the same dir
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| 37 | old_grubconf=/mnt/RESTORING/etc/$l
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| 38 | fi
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[1001] | 39 | fi
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| 40 | return 0
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[1] | 41 | elif [ -f "/mnt/cdrom/archives/CUCKOO" ] ; then
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| 42 | LogIt "Because I'm cuckoo, I'll stop searching." 2
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| 43 | return 1
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| 44 | else
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| 45 | LogIt "Looking for fstab. Please wait." 2
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| 46 | fstab_list=`find /mnt/RESTORING -name fstab 2> /dev/null`
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| 47 | fi
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| 48 | where_they_live=""
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| 49 | for curr_fstab in $fstab_list ; do
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[1448] | 50 | curr_dir=`echo $curr_fstab | gawk '{i=index($0,"/fstab");print substr($0,0,i-1);}'`
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| 51 | resA=$?
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| 52 | curr_inetd=`find $curr_dir -name inetd.conf | grep -v "linuxconf"`
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| 53 | resB=$?
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| 54 | if [ "$resA" -eq "0" ] ; then
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| 55 | if [ "$where_they_live" != "" ] ; then
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| 56 | LogIt "Two directories found! One is $where_they_live, the other $curr_dir" 1
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| 57 | LogIt "I don't know which to choose. I'll abort the search." 1
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| 58 | return 1
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| 59 | fi
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| 60 | where_they_live=$curr_dir
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| 61 | fi
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[1] | 62 | done
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| 63 | if [ "$where_they_live" = "" ] ; then
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[1448] | 64 | LogIt "Cannot find any folder which holds fstab _and_ inetd.conf" 1
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| 65 | return 1
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[1] | 66 | fi
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| 67 | old_grubconf=$where_they_live/grub.conf
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| 68 | old_fstab=$where_they_live/fstab
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| 69 | LogIt "GRUB and fstab found." 2
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| 70 | return 0
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| 71 | }
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| 72 |
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| 73 |
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| 74 | BEFORE=stabgrub-me.PRE
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| 75 |
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| 76 | MakeBackups() {
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| 77 | local i
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| 78 | LogIt "Backing up original files before modifying them..." 2
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| 79 | for i in $old_grubconf $old_fstab ; do
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[1448] | 80 | LogIt "Backing up $i"
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[1] | 81 | [ -e "$i" ] && [ ! -e "$i.$BEFORE" ] && cp -f $i $i.$BEFORE
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| 82 | done
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| 83 | }
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| 84 |
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| 85 |
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| 86 | RestoreBackups() {
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| 87 | LogIt "Restoring original versions of modified files..." 2
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| 88 | cp -f $old_grubconf /tmp/grub.conf.ugly
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| 89 | cp -f $old_fstab /tmp/fstab.ugly
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| 90 | for i in $old_grubconf $old_fstab ; do
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[1448] | 91 | LogIt "Restoring $i"
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| 92 | [ -f "$i.$BEFORE" ] && cp -f $i.$BEFORE $i
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[1] | 93 | done
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| 94 | }
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| 95 |
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| 96 |
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| 97 | # --------------------------------- main -------------------------------
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| 98 |
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| 99 | if [ "$#" -ne "1" ] ; then
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| 100 | LogIt "stabgrub-me </dev/bootdrive>"
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| 101 | exit 1
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| 102 | fi
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| 103 |
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| 104 | bootdrive=$1
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| 105 |
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| 106 | LogIt "stabgrub-me '$1' --- starting"
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| 107 | LocateOldFstab
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| 108 | old_mountlist=/tmp/mountlist.original
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| 109 | new_mountlist=/tmp/mountlist.txt
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| 110 | QuitIfNotFound $old_mountlist
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| 111 | QuitIfNotFound $new_mountlist
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| 112 | QuitIfNotFound $old_fstab
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| 113 | QuitIfNotFound $old_grubconf
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| 114 | LogIt "OK so far: I've found all the files I need." 2
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| 115 | new_fstab=/mnt/RESTORING/etc/fstab.NEW
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| 116 | new_grubconf=/mnt/RESTORING/etc/grub.conf.NEW
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| 117 | # change back to /tmp if /mnt/RESTORING/etc be problematic
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| 118 |
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| 119 | MakeBackups
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| 120 |
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| 121 | LogIt "old_mountlist = $old_mountlist"
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| 122 | LogIt "new_mountlist = $new_mountlist"
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| 123 | LogIt "old_fstab = $old_fstab"
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| 124 | LogIt "new_fstab = $new_fstab"
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| 125 | LogIt "where_they_live = $where_they_live"
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| 126 |
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| 127 | LogIt "Calling hack-fstab $old_mountlist $old_fstab $new_mountlist $new_fstab"
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| 128 |
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| 129 | outval=0
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| 130 | hack-fstab $old_mountlist $old_fstab $new_mountlist $new_fstab
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| 131 | res=$?
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| 132 | if [ "$res" -ne "0" ] ; then
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| 133 | LogIt "Warning - hack-fstab failed"
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| 134 | outval=$(($outval+$res))
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| 135 | else
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| 136 | LogIt "Back from hack-fstab OK" 1
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| 137 | fi
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| 138 |
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| 139 | if [ "$outval" -ne "0" ] ; then
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| 140 | LogIt "Fstab and/or grub modifications failed" 3
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| 141 | RestoreBackups
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| 142 | else
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| 143 | LogIt "Modifications succeeded." 2
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| 144 | LogIt "Copying $new_fstab over $old_fstab" 2
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| 145 | cp -f $new_fstab $old_fstab
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| 146 | cp -f $new_fstab /tmp/fstab
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| 147 | outval=$(($outval+$?))
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| 148 | LogIt "Copying over $old_grubconf" 2
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| 149 | if [ -f "$new_grubconf" ] ; then
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| 150 | cp -f $new_grubconf $old_grubconf
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| 151 | outval=$(($outval+$?))
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| 152 | fi
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| 153 | if [ "$outval" -ne "0" ] ; then
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[1448] | 154 | LogIt "Modifications (copying) failed. Restoring from backups." 3
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| 155 | RestoreBackups
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[1] | 156 | else
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[1448] | 157 | LogIt "Fstab modified ok." 2
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[1] | 158 | fi
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| 159 | cd /mnt/RESTORING
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| 160 | # cd $where_they_live
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| 161 | # cd ..
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| 162 | LogIt "Running grub..." 2
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| 163 | LogIt "grub-MR $bootdrive $new_mountlist"
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| 164 | grub-MR $bootdrive $new_mountlist >> $LOGFILE 2>> $LOGFILE
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| 165 | grub_res=$?
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| 166 | if [ "$grub_res" -ne "0" ] ; then
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| 167 | LogIt "grub-install failed. Running grub-MR..."
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[1448] | 168 | chroot /mnt/RESTORING grub-install '(hd0)' >> $LOGFILE 2>> $LOGFILE
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[1] | 169 | grub_res=$?
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| 170 | fi
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| 171 | if [ "$grub_res" -ne "0" ] ; then
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| 172 | LogIt "GRUB failed." 3
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| 173 | else
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| 174 | LogIt "GRUB ran ok." 2
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| 175 | fi
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| 176 | fi
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| 177 |
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| 178 | if [ "$outval" -ne "0" ] ; then
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| 179 | LogIt "Error(s) occurred during grub/fstab processing. "
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| 180 | LogIt "Restoring originals. "
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| 181 | RestoreBackups
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| 182 | elif [ "$grub_res" -ne "0" ] ; then
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| 183 | LogIt "Fstab was modified OK but grub failed to run. "
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| 184 | outval=$(($outval+1))
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| 185 | else
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| 186 | LogIt "/etc/fstab was modified ok. GRUB ran ok. "
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| 187 | fi
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| 188 | LogIt "stabgrub-me --- leaving"
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| 189 | echo -en "\n\n\n"
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| 190 | exit $outval
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