1mke2fs -F -T hugefile test.img 4T 2Creating filesystem with 1073741824 4k blocks and 1048576 inodes 3Superblock backups stored on blocks: 4 5Allocating group tables: done 6Writing inode tables: done 7Creating 1 huge file(s) : done 8Writing superblocks and filesystem accounting information: done 9 10Pass 1: Checking inodes, blocks, and sizes 11Pass 2: Checking directory structure 12Pass 3: Checking directory connectivity 13Pass 4: Checking reference counts 14Pass 5: Checking group summary information 15test_filesys: 13/1048576 files (0.0% non-contiguous), 1073709417/1073741824 blocks 16Exit status is 0 17debugfs -R "extents /store/big-data" test.img 18Last logical block: 1073610751 19Last physical block: 1073741823 20