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#!/bin/bash
#Usage: copydvd <read> <write>
#Make sure we are running as root (otherwise we can't burn later)
if [ `whoami` != "root" ]
then
echo "This script must be run as root."
exit 1
fi
DEVICE1="$1"
DEVICE2="$2"
TMPDIR=`mktemp -d` || exit 1
ISOPIPE="$TMPDIR/pipe.iso"
READERR="$TMPDIR/mkisoerr"
mkfifo "$ISOPIPE"
echo "Burning directory..."
growisofs -dvd-compat -Z "$DEVICE2"="$ISOPIPE" &
BURNER=$!
MD5=`dd if="$DEVICE1" 2>"$READERR" | tee "$ISOPIPE" | md5sum | egrep -o -i -e "^[0-9a-f]{32}"`
EXTENTS=`egrep -e "^[0-9]+ extents written " "$READERR" | egrep -o -e "^[0-9]+"`
wait "$BURNER"
echo "Wrote $EXTENTS extents with a MD5 hash of $MD5."
echo "Cycling drive tray..."
eject "$DEVICE2"
eject -t "$DEVICE2"
# Arch Linux seems to have problems without a wait
# here; gives dd: opening `/dev/sr1': No medium found otherwise
sleep 15
echo "Verifying..."
DISCMD5=`dd if="$DEVICE2" bs=2048 count="$EXTENTS" | md5sum | egrep -o -i -e "^[0-9a-f]{32}"`
echo "Disc has an MD5 hash of $DISCMD5."
if [ "$MD5" == "$DISCMD5" ]
then
echo "Disc appears to have burned successfully!"
else
echo "Disc appears to have burned with errors."
fi
rm -r "$TMPDIR"
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