ubuntu@ip-172-31-39-166:~$ sudo mkfs.ext4 -m 0 /dev/xvdd1
mke2fs 1.44.1 (24-Mar-2018)
Creating filesystem with 2096896 4k blocks and 524288 inodes
Filesystem UUID: 19064b4a-bdb0-493f-b76b-82d21335d1f6
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
