mkfs - ext2 & ext3

일단 mkfs는 DOS로 치자면 format 명령인데
linux에서는 ext2는 이제 잘 안쓰고 ext3를 주로 쓴다.

흥미롭게도 mkfs 과정중에 mkfs.ext2 와 mkfs.ext3 의 결과의 차이가 한줄 뿐이라는 사실을 발견했다.
그리고 부가적으로는 자동으로 체크하는 mount 횟수의 차이도 있다.

[root@localhost mnt]# mkfs.ext2 /dev/sda2 mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 3842720 inodes, 7679070 blocks 383953 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=0 235 block groups 32768 blocks per group, 32768 fragments per group 16352 inodes per group Superblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,         4096000 Writing inode tables: done                             Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 39 mounts or 180 days, whichever comes first.  Use tune2fs -c or -i to override.

[root@localhost mnt]# mkfs.ext3 /dev/sda3 mke2fs 1.39 (29-May-2006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 2093056 inodes, 4178908 blocks 208945 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4282384384 128 block groups 32768 blocks per group, 32768 fragments per group 16352 inodes per group Superblock backups stored on blocks:         32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,         4096000 Writing inode tables: done                             Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 28 mounts or 180 days, whichever comes first.  Use tune2fs -c or -i to override.

사진 : 클릭하면 크게 보입니다!