1test_description="e2undo dry run" 2if test -x $E2UNDO_EXE; then 3 4TDB_FILE=${TMPDIR:-/tmp}/tune2fs-$(basename $TMPFILE).e2undo 5OUT=$test_name.log 6rm -f $TDB_FILE >/dev/null 2>&1 7 8dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1 9 10echo mke2fs -q -F -o Linux -T ext4 -O ^metadata_csum,64bit -E lazy_itable_init=1 -b 1024 $TMPFILE > $OUT 11$MKE2FS -q -F -o Linux -T ext4 -O ^metadata_csum,64bit -E lazy_itable_init=1 -b 1024 $TMPFILE >> $OUT 2>&1 12crc0=`$CRCSUM $TMPFILE` 13echo $CRCSUM before tune2fs $crc0 >> $OUT 14 15echo using tune2fs to test e2undo >> $OUT 16$TUNE2FS -O metadata_csum -z $TDB_FILE $TMPFILE >> $OUT 2>&1 17crc1=`$CRCSUM $TMPFILE` 18echo $CRCSUM after tune2fs $crc1 >> $OUT 19 20$E2UNDO -n $TDB_FILE $TMPFILE >> $OUT 2>&1 21crc2=`$CRCSUM $TMPFILE` 22echo $CRCSUM after e2undo $crc2 >> $OUT 23 24if [ $crc1 = $crc2 ] && [ $crc1 != $crc0 ]; then 25 echo "$test_name: $test_description: ok" 26 touch $test_name.ok 27else 28 ln -f $test_name.log $test_name.failed 29 echo "$test_name: $test_description: failed" 30fi 31rm -f $TDB_FILE $TMPFILE 32fi 33