examples/dump_on_cd_2/EN/backup_DVD

   1 #!/bin/bash
   2 # This script dumps the specified Filesystem via dump on a CD/DVD
   3 # CD_CAPACITY defines the capacity in MB per CD
   4 # The script for the next volume is passed via the -F option of dump
   5 # At least for my DVD-Recorder (a PHILIPS DVR-A03) it is necessary
   6 # to define the tracksize for the next track before the DVD is written.
   7 # This is done via the -tsize option of cdrecord. Since tsize takes its
   8 # arguments in Bytes, the shell cannot compute the value correctly
   9 # anymore (value too high), so I use bc.
  10
  11 # !!! If you plan to write DVD's with other sizes, please correct the
  12 # CD_CAPACITY in the dump_userexit_DVD script, too !!!
  13
  14 COMPRESSION_LEVEL=2
  15 RECORD_BIN="/usr/bin/dvdrecord dev=0,0,0 fs=64M speed=2 "
  16 EXITSCRIPT="/root/bin/dvd_dump_userexit"
  17 FILESYSTEM="/home"
  18 LEVEL=0
  19 LABEL="`date -I`"
  20 CD_CAPACITY=4300
  21 TSIZE="$(echo "$CD_CAPACITY*1024*1024" | bc -l )"
  22 BSIZE="$(echo "$CD_CAPACITY*1024" | bc -l )"
  23 FIFO="/tmp/dump.fifo"
  24 DUMP_BIN="/usr/sbin/dump -z$COMPRESSION_LEVEL -b64 -B$BSIZE -F $EXITSCRIPT -$LEVEL -L $LABEL -f $FIFO $FILESYSTEM"
  25
  26 rm -f $FIFO
  27 mkfifo $FIFO
  28 ANSWER=""
  29 while [ "$ANSWER" != "y" ] ; do
  30         read -p "Did you insert DVD No. 1? (y/n)" ANSWER
  31         if [ "$ANSWER" == "y" ] ; then
  32                 $RECORD_BIN -blank=fast
  33                 $RECORD_BIN -eject -dao -pad -tsize=$TSIZE -data $FIFO &
  34                 $DUMP_BIN
  35                 rm -f $FIFO
  36                 exit 0
  37         elif [ "$ANSWER" == "n" ] ; then
  38                 EXIT=""
  39                 read -p "Do you really want to exit? (y/n)" EXIT
  40                 if [ "$EXIT" == "y" ] ; then
  41                         exit 1
  42                 fi
  43         fi
  44 done