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1 | #!/bin/bash | |
2 | # | |
3 | # This script will make a simple backup of the most critical partitions, | |
4 | # using the "dump" facility, into the backup partition. | |
5 | # | |
6 | # Run the following to make a complete backup: | |
7 | # | |
8 | # $ su -c "backup full" | |
9 | # | |
10 | # Run the following to make an incremental backup: | |
11 | # | |
12 | # $ su -c "backup inc" | |
13 | # | |
14 | # Add "nodumpdate" to run a backup but not effect the backup state | |
15 | # recorded in the file /var/lib/dumpdates and reported by dump -W: | |
16 | # | |
17 | # $ su -c "backup full nodumpdate" | |
18 | # | |
19 | ||
20 | if [ "$2" = "nodumpdate" ]; then | |
21 | UPDATEDDATE="" | |
22 | else | |
23 | UPDATEDDATE="-u" | |
24 | fi | |
25 | ||
26 | if [ "$1" = "full" ]; then | |
27 | DLEVEL="0" | |
28 | BTYPE="full" | |
29 | BACKUP="Full" | |
30 | elif [ "$1" = "inc" ]; then | |
31 | DLEVEL="1" | |
32 | BTYPE="inc" | |
33 | BACKUP="Incremental" | |
34 | else | |
35 | echo "Usage: $0 full|inc [nodumpdate]" | |
36 | exit 1 | |
37 | fi | |
38 | ||
39 | ||
40 | # | |
41 | # Configuration Parameters | |
42 | # | |
43 | ||
44 | BACKUPPART=${BACKUPPART:-"/backup"} | |
45 | BACKUPDIR=${BACKUPDIR:-"current"} | |
46 | DUMPLOGARCH="$BACKUPPART/backup.dump.log.gz" | |
47 | FSTODUMP=${FSTODUMP:-/ /var /home /mnt/hdb1 /usr} | |
48 | DUMPFILESMODE="0644" | |
49 | DUMPFILESOWN="root.root" | |
50 | ||
51 | # | |
52 | # Start | |
53 | # | |
54 | ||
55 | echo | |
56 | echo "#####################################################################" | |
57 | echo "Starting ${BACKUP} backup." | |
58 | echo "#####################################################################" | |
59 | echo | |
60 | ||
61 | ||
62 | # | |
63 | # Make system backup | |
64 | # | |
65 | ||
66 | echo "### ${BACKUP} System Dump Backup ###" | |
67 | echo "Using backup partition: $BACKUPPART" | |
68 | echo "Filesystems to dump: $FSTODUMP" | |
69 | ||
70 | echo -n "Remounting backup partition read-write ... " | |
71 | if ( mount $BACKUPPART -o remount,rw &> /dev/null ) then | |
72 | echo "done." | |
73 | elif ( mount $BACKUPPART -o rw &> /dev/null ) then | |
74 | echo "done." | |
75 | else | |
76 | echo "failure!" | |
77 | echo " There were problems remounting $BACKUPPART in read-write mode!" | |
78 | echo "Aborting ${BACKUP} System Dump Backup." | |
79 | echo "Aborted." | |
80 | echo "-------------------------------------------------------------------------------" | |
81 | exit 1 | |
82 | fi | |
83 | ||
84 | echo -n "Checking backup partition for correct dir structure ... " | |
85 | if [ -d $BACKUPPART/$BACKUPDIR -a -w $BACKUPPART/$BACKUPDIR ]; then | |
86 | echo "done." | |
87 | ||
88 | echo -n "Checking backup partition for available space ... " | |
89 | 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}'` | |
90 | SAVAILFREE=`df --block-size=1048576 | grep -Fe $BACKUPPART | awk '{printf "%6.0f\n", $4}'` | |
91 | SAVAILDEL=`du -s --block-size=1048576 $BACKUPPART/$BACKUPDIR/. | awk '{printf "%6.0f\n", $1}'` | |
92 | SAVAIL=`expr $SAVAILFREE + $SAVAILDEL` | |
93 | ||
94 | if [ `expr $SAVAIL - $SREQ` -gt "0" ]; then | |
95 | echo "done." | |
96 | echo "Available: $SAVAIL MB Required: $SREQ MB." | |
97 | else | |
98 | echo "not enough space!" | |
99 | echo "There is not enough space left in $BACKUPPART for the backup!" | |
100 | echo "Available: $SAVAIL MB Required: $SREQ MB." | |
101 | echo -n "Remounting backup partition read-only ... " | |
102 | if ( mount $BACKUPPART -o remount,ro &> /dev/null ) then | |
103 | echo "done." | |
104 | elif ( mount $BACKUPPART -o ro &> /dev/null ) then | |
105 | echo "done." | |
106 | else | |
107 | echo "failure!" | |
108 | echo "There were problems remounting $BACKUPPART in read-only mode!" | |
109 | echo "Aborting ${BACKUP} System Dump Backup." | |
110 | echo "Aborted." | |
111 | echo "-------------------------------------------------------------------------------" | |
112 | exit 1 | |
113 | fi | |
114 | echo "Aborting ${BACKUP} System Dump Backup." | |
115 | echo "Aborted." | |
116 | echo "-------------------------------------------------------------------------------" | |
117 | exit 1 | |
118 | fi | |
119 | ||
120 | echo -n "Deleting old files ... " | |
121 | if [ `ls -la $BACKUPPART/$BACKUPDIR/ | wc -l` -gt "3" ]; then | |
122 | rm -f $BACKUPPART/$BACKUPDIR/* &> /dev/null | |
123 | echo "done." | |
124 | else | |
125 | echo "no old files to delete." | |
126 | fi | |
127 | ||
128 | echo "Dumping filesystems ... " | |
129 | for FS in $FSTODUMP | |
130 | do | |
131 | if [ "$FS" = "/" ]; then | |
132 | FSNAME="root" | |
133 | else | |
134 | FSNAME=`echo $FS | tr / _ | cut -b 2-` | |
135 | fi | |
136 | sync | |
137 | TODAY="`date +%a%Y%m%d`" | |
138 | echo -n "Starting dump of $FSNAME ( $FS ) ... " | |
139 | if ( dump -$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 | |
140 | echo "done." | |
141 | else | |
142 | echo "problems!" | |
143 | echo "There were problems with the dump of $FSNAME ( $FS )." | |
144 | echo "Check log file at $BACKUPPART/$BACKUPDIR/$FSNAME.log.gz" | |
145 | echo "Also check log archive file $DUMPLOGARCH." | |
146 | fi | |
147 | ||
148 | echo -n "Verifying dump of $FSNAME ( $FS ) ... " | |
149 | echo "-------------------------------------------------------------------------------" >> $BACKUPPART/$BACKUPDIR/$FSNAME.log | |
150 | echo "Result of dump for $FSNAME ( $FS ):" >> $BACKUPPART/$BACKUPDIR/$FSNAME.log | |
151 | if ( restore -C -M -f $BACKUPPART/$BACKUPDIR/$FSNAME.$BTYPE. >> $BACKUPPART/$BACKUPDIR/$FSNAME.log 2>&1 ) then | |
152 | echo "done." | |
153 | else | |
154 | echo "problems!" | |
155 | echo "There were problems verifying the dump of $FSNAME ( $FS )." | |
156 | echo "Check log file $BACKUPPART/$BACKUPDIR/$FSNAME.log.gz for more info" | |
157 | fi | |
158 | cat $BACKUPPART/$BACKUPDIR/$FSNAME.log |gzip >> $DUMPLOGARCH | |
159 | echo "-------------------------------------------------------------------------------" |gzip >> $DUMPLOGARCH | |
160 | done | |
161 | ||
162 | echo -n "Setting ownership and permissions of dump files ... " | |
163 | chmod $DUMPFILESMODE $BACKUPPART/$BACKUPDIR/* $DUMPLOGARCH &> /dev/null | |
164 | chown $DUMPFILESOWN $BACKUPPART/$BACKUPDIR/* $DUMPLOGARCH &> /dev/null | |
165 | echo "done." | |
166 | ||
167 | echo -n "Compressing dump log files ... " | |
168 | gzip $BACKUPPART/$BACKUPDIR/*.log &> /dev/null | |
169 | echo "done." | |
170 | sync | |
171 | ||
172 | else | |
173 | echo "problems!" | |
174 | echo "There are problems with the directory structure." | |
175 | echo "Check directory: $BACKUPPART/$BACKUPDIR" | |
176 | echo -n "Remounting backup partition read-only ... " | |
177 | if ( mount $BACKUPPART -o remount,ro &> /dev/null ) then | |
178 | echo "done." | |
179 | else | |
180 | echo "failure!" | |
181 | echo "There were problems remounting $BACKUPPART in read-only mode!" | |
182 | echo "Aborting ${BACKUP} System Dump Backup." | |
183 | echo "Aborted." | |
184 | echo "-------------------------------------------------------------------------------" | |
185 | exit 1 | |
186 | fi | |
187 | echo "Aborting ${BACKUP} System Dump Backup." | |
188 | echo "Aborted." | |
189 | echo "-------------------------------------------------------------------------------" | |
190 | exit 1 | |
191 | fi | |
192 | ||
193 | echo -n "Remounting backup partition read-only ... " | |
194 | if ( mount $BACKUPPART -o remount,ro &> /dev/null ) then | |
195 | echo "done." | |
196 | else | |
197 | echo "failure!" | |
198 | echo "There were problems remounting $BACKUPPART in read-only mode!" | |
199 | echo "Aborting ${BACKUP} System Dump Backup." | |
200 | echo "Aborted." | |
201 | echo "-------------------------------------------------------------------------------" | |
202 | exit 1 | |
203 | fi | |
204 | ||
205 | echo "### End of ${BACKUP} System Dump Backup ###" | |
206 | echo "Done." | |
207 | echo "-------------------------------------------------------------------------------" | |
208 | ||
209 | ## end of script |