| mke2fs -F -T hugefile test.img 4T |
| Creating filesystem with 1073741824 4k blocks and 1048576 inodes |
| Superblock backups stored on blocks: |
| |
| Allocating group tables: done |
| Writing inode tables: done |
| Creating 1 huge file(s) : done |
| Writing superblocks and filesystem accounting information: done |
| |
| 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: 13/1048576 files (0.0% non-contiguous), 1073709417/1073741824 blocks |
| Exit status is 0 |
| debugfs -R "extents /store/big-data" test.img |
| Last logical block: 1073610751 |
| Last physical block: 1073741823 |
