source: trunk/mondo/mondo/restore-scripts/mondo/stabgrub-me @ 30

Last change on this file since 30 was 30, checked in by bcornec, 14 years ago

Id property added on files to allow for better conf. management

  • Property svn:keywords set to Id
File size: 4.8 KB
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1#!/bin/sh
2#
3# stabgrub-me
4#
5# 04/08/2003
6# - cleaned up backup func a bit
7#
8#
9#
10# forked from stablilo-me on 2002/11/20
11#
12#####################################################################
13
14
15LOGFILE=/tmp/mondo-restore.log
16
17QuitIfNotFound() {
18    if [ ! -f "$1" ] ; then
19    LogIt "(stabgrub-me) Where's $1? I cannot continue." 1
20    exit 1
21    fi
22}
23
24
25
26
27
28LocateOldFstab() {
29    old_fstab=""
30    old_grubconf=""
31    if [ -f "/mnt/RESTORING/etc/fstab" ] ; then
32        LogIt "No need for fstab search." 2
33#        fstab_list=/mnt/RESTORING/etc/fstab
34    old_fstab=/mnt/RESTORING/etc/fstab
35    old_grubconf=/mnt/RESTORING/etc/grub.conf
36    return 0
37    elif [ -f "/mnt/cdrom/archives/CUCKOO" ] ; then
38        LogIt "Because I'm cuckoo, I'll stop searching." 2
39        return 1
40    else
41        LogIt "Looking for fstab. Please wait." 2
42        fstab_list=`find /mnt/RESTORING -name fstab 2> /dev/null`
43    fi
44    where_they_live=""
45    for curr_fstab in $fstab_list ; do
46    curr_dir=`echo $curr_fstab | gawk '{i=index($0,"/fstab");print substr($0,0,i-1);}'`
47    resA=$?
48    curr_inetd=`find $curr_dir -name inetd.conf | grep -v "linuxconf"`
49    resB=$?
50    if [ "$resA" -eq "0" ] ; then
51        if [ "$where_they_live" != "" ] ; then
52        LogIt "Two directories found! One is $where_they_live, the other $curr_dir" 1
53        LogIt "I don't know which to choose. I'll abort the search." 1
54        return 1
55        fi
56        where_they_live=$curr_dir
57    fi
58    done
59    if [ "$where_they_live" = "" ] ; then
60    LogIt "Cannot find any folder which holds fstab _and_ inetd.conf" 1
61    return 1
62    fi
63    old_grubconf=$where_they_live/grub.conf
64    old_fstab=$where_they_live/fstab
65    LogIt "GRUB and fstab found." 2
66    return 0
67}
68
69
70BEFORE=stabgrub-me.PRE
71
72MakeBackups() {
73    local i
74    LogIt "Backing up original files before modifying them..." 2
75    for i in $old_grubconf $old_fstab ; do
76    LogIt "Backing up $i"
77        [ -e "$i" ] && [ ! -e "$i.$BEFORE" ] && cp -f $i $i.$BEFORE
78    done
79}
80
81
82RestoreBackups() {
83    LogIt "Restoring original versions of modified files..." 2
84    cp -f $old_grubconf /tmp/grub.conf.ugly
85    cp -f $old_fstab /tmp/fstab.ugly
86    for i in $old_grubconf $old_fstab ; do
87    LogIt "Restoring $i"
88    [ -f "$i.$BEFORE" ] && cp -f $i.$BEFORE $i
89    done
90}
91
92
93# --------------------------------- main -------------------------------
94
95if [ "$#" -ne "1" ] ; then
96    LogIt "stabgrub-me </dev/bootdrive>"
97    exit 1
98fi
99
100bootdrive=$1
101
102LogIt "stabgrub-me '$1' --- starting"
103LocateOldFstab
104old_mountlist=/tmp/mountlist.original
105new_mountlist=/tmp/mountlist.txt
106QuitIfNotFound $old_mountlist
107QuitIfNotFound $new_mountlist
108QuitIfNotFound $old_fstab
109QuitIfNotFound $old_grubconf
110LogIt "OK so far: I've found all the files I need." 2
111new_fstab=/mnt/RESTORING/etc/fstab.NEW
112new_grubconf=/mnt/RESTORING/etc/grub.conf.NEW
113# change back to /tmp if /mnt/RESTORING/etc be problematic
114
115MakeBackups
116
117LogIt "old_mountlist = $old_mountlist"
118LogIt "new_mountlist = $new_mountlist"
119LogIt "old_fstab = $old_fstab"
120LogIt "new_fstab = $new_fstab"
121LogIt "where_they_live = $where_they_live"
122
123LogIt "Calling hack-fstab $old_mountlist $old_fstab $new_mountlist $new_fstab"
124
125outval=0
126hack-fstab $old_mountlist $old_fstab $new_mountlist $new_fstab
127res=$?
128if [ "$res" -ne "0" ] ; then
129    LogIt "Warning - hack-fstab failed"
130    outval=$(($outval+$res))
131else
132    LogIt "Back from hack-fstab OK" 1
133fi
134
135if [ "$outval" -ne "0" ] ; then
136    LogIt "Fstab and/or grub modifications failed" 3
137    RestoreBackups
138else
139    LogIt "Modifications succeeded." 2
140    LogIt "Copying $new_fstab over $old_fstab" 2
141    cp -f $new_fstab $old_fstab
142    cp -f $new_fstab /tmp/fstab
143    outval=$(($outval+$?))
144    LogIt "Copying over $old_grubconf" 2
145    if [ -f "$new_grubconf" ] ; then
146        cp -f $new_grubconf $old_grubconf
147        outval=$(($outval+$?))
148    fi
149    if [ "$outval" -ne "0" ] ; then
150    LogIt "Modifications (copying) failed. Restoring from backups." 3
151    RestoreBackups
152    else
153    LogIt "Fstab modified ok." 2
154    fi
155    cd /mnt/RESTORING
156#    cd $where_they_live
157#    cd ..
158    LogIt "Running grub..." 2
159    LogIt "grub-MR $bootdrive $new_mountlist"
160    grub-MR $bootdrive $new_mountlist >> $LOGFILE 2>> $LOGFILE
161    grub_res=$?
162    if [ "$grub_res" -ne "0" ] ; then
163        LogIt "grub-install failed. Running grub-MR..."
164    chroot /mnt/RESTORING grub-install '(hd0)' >> $LOGFILE 2>> $LOGFILE
165        grub_res=$?
166    fi
167    if [ "$grub_res" -ne "0" ] ; then
168    LogIt "GRUB failed." 3
169    else
170        LogIt "GRUB ran ok." 2
171    fi
172fi
173
174if [ "$outval" -ne "0" ] ; then
175    LogIt "Error(s) occurred during grub/fstab processing.              "
176    LogIt "Restoring originals.                                         "
177    RestoreBackups
178elif [ "$grub_res" -ne "0" ] ; then
179    LogIt "Fstab was modified OK but grub failed to run.                 "
180    outval=$(($outval+1))
181else
182    LogIt "/etc/fstab was modified ok. GRUB ran ok.                      "
183fi
184LogIt "stabgrub-me --- leaving"
185echo -en "\n\n\n"
186exit $outval
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