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1 | #!/bin/bash | |
2 | ||
3 | ### | |
4 | # Copyright (C) 2001 Eugenio Diaz <getnito@yahoo.com> | |
5 | # | |
6 | # Redistribution and use in source and binary forms, with or without | |
7 | # modification, are permitted provided that the following conditions | |
8 | # are met: | |
9 | # | |
10 | # 1. Redistributions of source code must retain the above copyright | |
11 | # notice, this list of conditions and the following disclaimer. | |
12 | # 2. Redistributions in binary form must reproduce the above | |
13 | # copyright notice, this list of conditions and the following | |
14 | # disclaimer in the documentation and/or other materials provided | |
15 | # with the distribution. | |
16 | # 3. Neither the name of the University nor the names of its | |
17 | # contributors may be used to endorse or promote products derived | |
18 | # from this software without specific prior written permission. | |
19 | # | |
20 | # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' | |
21 | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
22 | # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | |
23 | # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS | |
24 | # OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
25 | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
26 | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | |
27 | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | |
28 | # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
29 | # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
30 | # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | # SUCH DAMAGE. | |
32 | # | |
33 | ## | |
34 | # | |
35 | # This script will make a simple backup of the most critical | |
36 | # partitions, using the "dump" facility, into the backup partition. | |
37 | # | |
38 | # Run the following to make a complete backup: | |
39 | # | |
40 | # $ su -c "backup full" | |
41 | # | |
42 | # Run the following to make an incremental backup: | |
43 | # | |
44 | # $ su -c "backup inc" | |
45 | # | |
46 | # Add "nodumpdate" to run a backup but not effect the backup state | |
47 | # recorded in the file /var/lib/dumpdates and reported by dump -W: | |
48 | # | |
49 | # $ su -c "backup full nodumpdate" | |
50 | # | |
51 | ## | |
52 | ||
53 | if [ "$2" = "nodumpdate" ]; then | |
54 | UPDATEDDATE="" | |
55 | else | |
56 | UPDATEDDATE="-u" | |
57 | fi | |
58 | ||
59 | if [ "$1" = "full" ]; then | |
60 | DLEVEL="0" | |
61 | BTYPE="full" | |
62 | BACKUP="Full" | |
63 | elif [ "$1" = "inc" ]; then | |
64 | DLEVEL="1" | |
65 | BTYPE="inc" | |
66 | BACKUP="Incremental" | |
67 | else | |
68 | echo "Usage: $0 full|inc [nodumpdate]" | |
69 | exit 1 | |
70 | fi | |
71 | ||
72 | ||
73 | # | |
74 | # Configuration Parameters | |
75 | # | |
76 | ||
77 | BACKUPPART=${BACKUPPART:-"/backup"} | |
78 | BACKUPDIR=${BACKUPDIR:-"current"} | |
79 | DUMPLOGARCH="$BACKUPPART/backup.dump.log.gz" | |
80 | FSTODUMP=${FSTODUMP:-/ /var /home /mnt/hdb1 /usr} | |
81 | DUMPFILESMODE="0644" | |
82 | DUMPFILESOWN="root.root" | |
83 | ||
84 | # | |
85 | # Start | |
86 | # | |
87 | ||
88 | echo | |
89 | echo "############################################################" | |
90 | echo "Starting ${BACKUP} backup" | |
91 | echo "############################################################" | |
92 | echo | |
93 | ||
94 | ||
95 | # | |
96 | # Make system backup | |
97 | # | |
98 | ||
99 | echo "### ${BACKUP} System Dump Backup ###" | |
100 | echo "Using backup partition: $BACKUPPART" | |
101 | echo "Filesystems to dump: $FSTODUMP" | |
102 | ||
103 | echo -n "Remounting backup partition read-write ... " | |
104 | if ( mount $BACKUPPART -o remount,rw &> /dev/null ) then | |
105 | echo "done." | |
106 | elif ( mount $BACKUPPART -o rw &> /dev/null ) then | |
107 | echo "done." | |
108 | else | |
109 | echo "failure!" | |
110 | echo "There were problems remounting $BACKUPPART in read-write mode!" | |
111 | echo "Aborting ${BACKUP} System Dump Backup." | |
112 | echo "Aborted." | |
113 | echo "------------------------------------------------------------" | |
114 | exit 1 | |
115 | fi | |
116 | ||
117 | echo -n "Checking directory structure on backup partition ... " | |
118 | if [ -d $BACKUPPART/$BACKUPDIR -a -w $BACKUPPART/$BACKUPDIR ]; then | |
119 | echo "done." | |
120 | ||
121 | echo -n "Checking backup partition for available space ... " | |
122 | SREQ=$(for i in $FSTODUMP; do dump -$DLEVEL -S $i 2> /dev/null; done | awk '{x=x+$1/1048576} END {printf "%6.0f\n", x}') | |
123 | SAVAILFREE=$(df --block-size=1048576 | grep -Fe $BACKUPPART | awk '{printf "%6.0f\n", $4}') | |
124 | SAVAILDEL=$(du -s --block-size=1048576 $BACKUPPART/$BACKUPDIR/. | awk '{printf "%6.0f\n", $1}') | |
125 | SAVAIL=$(( $SAVAILFREE + $SAVAILDEL )) | |
126 | ||
127 | if [ "$(( $SAVAIL - $SREQ ))" -gt "0" ]; then | |
128 | echo "done." | |
129 | echo "Available: $SAVAIL MB Required: $SREQ MB." | |
130 | else | |
131 | echo "not enough space!" | |
132 | echo "There is not enough space left in $BACKUPPART for the backup!" | |
133 | echo "Available: $SAVAIL MB Required: $SREQ MB." | |
134 | echo -n "Remounting backup partition read-only ... " | |
135 | if ( mount $BACKUPPART -o remount,ro &> /dev/null ) then | |
136 | echo "done." | |
137 | elif ( mount $BACKUPPART -o ro &> /dev/null ) then | |
138 | echo "done." | |
139 | else | |
140 | echo "failure!" | |
141 | echo "There were problems remounting $BACKUPPART in read-only mode!" | |
142 | echo "Aborting ${BACKUP} System Dump Backup." | |
143 | echo "Aborted." | |
144 | echo "------------------------------------------------------------" | |
145 | exit 1 | |
146 | fi | |
147 | echo "Aborting ${BACKUP} System Dump Backup." | |
148 | echo "Aborted." | |
149 | echo "------------------------------------------------------------" | |
150 | exit 1 | |
151 | fi | |
152 | ||
153 | echo -n "Deleting old files ... " | |
154 | if [ "$(ls -la $BACKUPPART/$BACKUPDIR/ | wc -l)" -gt "3" ]; then | |
155 | rm -f $BACKUPPART/$BACKUPDIR/* &> /dev/null | |
156 | echo "done." | |
157 | else | |
158 | echo "no old files to delete." | |
159 | fi | |
160 | ||
161 | echo "Dumping filesystems ... " | |
162 | for FS in $FSTODUMP | |
163 | do | |
164 | if [ "$FS" = "/" ]; then | |
165 | FSNAME="root" | |
166 | else | |
167 | FSNAME="$(echo $FS | tr / _ | cut -b 2-)" | |
168 | fi | |
169 | sync | |
170 | TODAY="$(date +%a%Y%m%d)" | |
171 | echo -n "Starting dump of $FSNAME ( $FS ) ... " | |
172 | if ( dump -$DLEVEL $UPDATEDDATE -z -M -s 27306 -f $BACKUPPART/$BACKUPDIR/$FSNAME.$BTYPE. -Q $BACKUPPART/$BACKUPDIR/$FSNAME.$BTYPE.qfa -L ${TODAY}file $FS &> $BACKUPPART/$BACKUPDIR/$FSNAME.log ) then | |
173 | echo "done." | |
174 | else | |
175 | echo "problems!" | |
176 | echo "There were problems with the dump of $FSNAME ( $FS )." | |
177 | echo "Check log file at $BACKUPPART/$BACKUPDIR/$FSNAME.log.gz" | |
178 | echo "Also check log archive file $DUMPLOGARCH." | |
179 | fi | |
180 | ||
181 | echo -n "Verifying dump of $FSNAME ( $FS ) ... " | |
182 | echo "------------------------------------------------------------" >> $BACKUPPART/$BACKUPDIR/$FSNAME.log | |
183 | echo "Result of dump for $FSNAME ( $FS ):" >> $BACKUPPART/$BACKUPDIR/$FSNAME.log | |
184 | if ( restore -C -M -f $BACKUPPART/$BACKUPDIR/$FSNAME.$BTYPE. >> $BACKUPPART/$BACKUPDIR/$FSNAME.log 2>&1 ) then | |
185 | echo "done." | |
186 | else | |
187 | echo "problems!" | |
188 | echo "There were problems verifying the dump of $FSNAME ( $FS )." | |
189 | echo "Check log file $BACKUPPART/$BACKUPDIR/$FSNAME.log.gz for more info" | |
190 | fi | |
191 | gzip < $BACKUPPART/$BACKUPDIR/$FSNAME.log >> $DUMPLOGARCH | |
192 | echo "------------------------------------------------------------" | gzip >> $DUMPLOGARCH | |
193 | done | |
194 | ||
195 | echo -n "Setting ownership and permissions of dump files ... " | |
196 | chmod $DUMPFILESMODE $BACKUPPART/$BACKUPDIR/* $DUMPLOGARCH &> /dev/null | |
197 | chown $DUMPFILESOWN $BACKUPPART/$BACKUPDIR/* $DUMPLOGARCH &> /dev/null | |
198 | echo "done." | |
199 | ||
200 | echo -n "Compressing dump log files ... " | |
201 | gzip $BACKUPPART/$BACKUPDIR/*.log &> /dev/null | |
202 | echo "done." | |
203 | sync | |
204 | ||
205 | else | |
206 | echo "problems!" | |
207 | echo "There are problems with the directory structure." | |
208 | echo "Check directory: $BACKUPPART/$BACKUPDIR" | |
209 | echo -n "Remounting backup partition read-only ... " | |
210 | if ( mount $BACKUPPART -o remount,ro &> /dev/null ) then | |
211 | echo "done." | |
212 | else | |
213 | echo "failure!" | |
214 | echo "There were problems remounting $BACKUPPART in read-only mode!" | |
215 | echo "Aborting ${BACKUP} System Dump Backup." | |
216 | echo "Aborted." | |
217 | echo "------------------------------------------------------------" | |
218 | exit 1 | |
219 | fi | |
220 | echo "Aborting ${BACKUP} System Dump Backup." | |
221 | echo "Aborted." | |
222 | echo "------------------------------------------------------------" | |
223 | exit 1 | |
224 | fi | |
225 | ||
226 | echo -n "Remounting backup partition read-only ... " | |
227 | if ( mount $BACKUPPART -o remount,ro &> /dev/null ) then | |
228 | echo "done." | |
229 | else | |
230 | echo "failure!" | |
231 | echo "There were problems remounting $BACKUPPART in read-only mode!" | |
232 | echo "Aborting ${BACKUP} System Dump Backup." | |
233 | echo "Aborted." | |
234 | echo "------------------------------------------------------------" | |
235 | exit 1 | |
236 | fi | |
237 | ||
238 | echo "### End of ${BACKUP} System Dump Backup ###" | |
239 | echo "Done." | |
240 | echo "------------------------------------------------------------" | |
241 | ||
242 | ## end of script |