1One or more block group descriptor checksums are invalid. Fix? yes 2 3Group descriptor 0 checksum is 0xffff, should be 0x4972. FIXED. 4Pass 1: Checking inodes, blocks, and sizes 5Pass 2: Checking directory structure 6Pass 3: Checking directory connectivity 7Pass 4: Checking reference counts 8Pass 5: Checking group summary information 9test_filesys: 11/128 files (0.0% non-contiguous), 18/512 blocks 10Exit status is 0 11