1Pass 1: Checking inodes, blocks, and sizes 2Pass 2: Checking directory structure 3Entry '.' in ??? (12) is duplicate '.' entry. 4Fix? yes 5 6Entry '..' in ??? (12) is duplicate '..' entry. 7Fix? yes 8 9Pass 3: Checking directory connectivity 10Pass 4: Checking reference counts 11Unattached inode 13 12Connect to /lost+found? yes 13 14Inode 13 ref count is 2, should be 1. Fix? yes 15 16Unattached zero-length inode 14. Clear? yes 17 18Pass 5: Checking group summary information 19 20test_filesys: ***** FILE SYSTEM WAS MODIFIED ***** 21test_filesys: 13/16 files (0.0% non-contiguous), 22/100 blocks 22Exit status is 1 23