~~~

添加盘：

Disk /dev/sdb: 1073 MB, 1073741824 bytes

255 heads, 63 sectors/track, 130 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

[root@single1 test]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda3 38G 14G 22G 40% /

tmpfs 495M 202M 293M 41% /dev/shm

/dev/sda1 388M 384M 0 100% /boot

[root@single1 test]# pwd

/test

[root@single1 test]# ls

video.avi

挂载:

[root@single1 ~]# mount /dev/sdb /test

[root@single1 ~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda3 38G 14G 22G 40% /

tmpfs 495M 202M 293M 41% /dev/shm

/dev/sda1 388M 384M 0 100% /boot

/dev/sdb 1008M 34M 924M 4% /test

[root@single1 ~]# cd /test

[root@single1 test]# ll

total 16

drwx------ 2 root root 16384 Jan 18 18:23 lost+found

我的video.avi 不见了!!

[root@single1 ~]# umount /test

[root@single1 ~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda3 38G 14G 22G 40% /

tmpfs 495M 202M 293M 41% /dev/shm

/dev/sda1 388M 384M 0 100% /boot

[root@single1 ~]# cd /test

[root@single1 test]# ll

total 4

-rw-r--r-- 1 root root 16 Jan 18 18:20 video.avi

OK，它又回来了！

所以，mount磁盘之前，最好检查下路径下的文件。有用的mv，没用的rm。

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