[root@localhost ~]# ll /dev/sdb*

brw-rw----. 1 root disk 8, 16 3月 ?16 22:40 /dev/sdb

brw-rw----. 1 root disk 8, 17 3月 ?16 22:30 /dev/sdb1

brw-rw----. 1 root disk 8, 18 3月 ?16 22:30 /dev/sdb2

brw-rw----. 1 root disk 8, 19 3月 ?16 22:30 /dev/sdb3

我把/dev/sdb給格式化了，這回有哪些后果？

?mkfs.ext4 /dev/sdb

mke2fs 1.41.12 (17-May-2010)

/dev/sdb is entire device, not just one partition!

無論如何也要繼續(xù)? (y,n) y

文件系統(tǒng)標(biāo)簽=

操作系統(tǒng):Linux

塊大小=4096 (log=2)

分塊大小=4096 (log=2)

Stride=0 blocks, Stripe width=0 blocks

196608 inodes, 786432 blocks

39321 blocks (5.00%) reserved for the super user

第一個數(shù)據(jù)塊=0

Maximum filesystem blocks=805306368

24 block groups

32768 blocks per group, 32768 fragments per group

8192 inodes per group

Superblock backups stored on blocks:?

32768, 98304, 163840, 229376, 294912

正在寫入inode表: 完成 ? ? ? ? ? ? ? ? ? ? ? ? ? ?

Creating journal (16384 blocks): 完成

Writing superblocks and filesystem accounting information: 完成

This filesystem will be automatically checked every 25 mounts or

180 days, whichever comes first. ?Use tune2fs -c or -i to override.