mkfs.ext4(8): create ext2/ext3/ext4 filesystem - Linux man page
mke2fs is used to create an ext2, ext3, or ext4 filesystem, usually in a disk partition. device is the special file corresponding to the device (e.g ... ... mke2fs [ -c | -l filename] [ -b block-size] [ -f fragment-size] [ -g blocks-per-group] [ -G number...