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test_description="e2undo dry run"
if test -x $E2UNDO_EXE; then
TDB_FILE=${TMPDIR:-/tmp}/tune2fs-$(basename $TMPFILE).e2undo
OUT=$test_name.log
rm -f $TDB_FILE >/dev/null 2>&1
dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1
echo mke2fs -q -F -o Linux -T ext4 -O ^metadata_csum,64bit -E lazy_itable_init=1 -b 1024 $TMPFILE > $OUT
$MKE2FS -q -F -o Linux -T ext4 -O ^metadata_csum,64bit -E lazy_itable_init=1 -b 1024 $TMPFILE >> $OUT 2>&1
crc0=`$CRCSUM $TMPFILE`
echo $CRCSUM before tune2fs $crc0 >> $OUT
echo using tune2fs to test e2undo >> $OUT
$TUNE2FS -O metadata_csum -z $TDB_FILE $TMPFILE >> $OUT 2>&1
crc1=`$CRCSUM $TMPFILE`
echo $CRCSUM after tune2fs $crc1 >> $OUT
$E2UNDO -n $TDB_FILE $TMPFILE >> $OUT 2>&1
crc2=`$CRCSUM $TMPFILE`
echo $CRCSUM after e2undo $crc2 >> $OUT
if [ $crc1 = $crc2 ] && [ $crc1 != $crc0 ]; then
echo "$test_name: $test_description: ok"
touch $test_name.ok
else
ln -f $test_name.log $test_name.failed
echo "$test_name: $test_description: failed"
fi
rm -f $TDB_FILE $TMPFILE
fi
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