Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
test_filesys: 12/256 files (8.3% non-contiguous), 65/2048 blocks
Exit status is 0
debugfs: ex /realmode.bin
Level Entries       Logical      Physical Length Flags
 0/ 0   1/  3     0 -     0   513 -   513      1 
 0/ 0   2/  3     4 -     8   514 -   518      5 
 0/ 0   3/  3    20 -    20  2005 -  2005      1 
