Filesystem type is: ef53
Filesystem cylinder groups is approximately 295
File size of j2 is 63488 (16 blocks, blocksize 4096)
 ext logical physical expected length flags
   0       0  8839042               1 merged
   1       1  8839045  8839042      3 merged
   2       4  8839058  8839047      6 merged
   3      10  8839066  8839063      2 merged
   4      12  8839069  8839067      4 merged,eof
j2: 5 extents found, perfection would be 1 extent