手动挂载移动硬盘和卸载硬盘；注意：是系统文件格式为“ntfs” 移动硬盘
准备：（ 如果移动硬盘在windows操作系统下挂着的 请安全的移除移动硬盘。在到ubantu操作系统下 插入USB接口的移动硬盘。）打开 ”应用程序“ －>“附件“ ->“终端“ ok! 动手咯！
1.进入"/" ; : cd /

2.查看盘；：sudo fdisk -l

3.创建挂载点； sudo mkdir /media/disk

4.挂载了;  sudo mount -t ntfs-3g /dev/sdb /media/disk -o force (本人菜鸟，找到的盘是“sdb“ 呵呵。。此时桌面出现一个有USB字样移动硬盘图标出现，并且还有硬盘的容量 我的是120GB。现在就可以用你的移动硬盘了)

5.卸载；sudo umount /dedia/disk(在桌面的硬盘图标消失了 当然是不需要用时才卸载。笨蛋才现在卸载。呵呵。。)

代码如下：
li@ubuntu:~$ cd /
li@ubuntu:/$ ls
bin   cdrom  etc   initrd      lib         media  opt   root  srv  tmp  var
boot  dev    home  initrd.img  lost+found  mnt    proc  sbin  sys  usr  vmlinuz
li@ubuntu:/$ fdisk -l
li@ubuntu:/$ sudo fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000c4ed0

Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        2518    20225803+  83  Linux
/dev/sda2            2519        2610      738990    5  Extended
/dev/sda5            2519        2610      738958+  82  Linux swap / Solaris

Disk /dev/sdb: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x69205244

This doesn't look like a partition table
Probably you selected the wrong device.

Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   ?       13578      119522   850995205    7  HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/sdb2   ?       45382       79243   271987362   74  Unknown
Partition 2 does not end on cylinder boundary.
/dev/sdb3   ?       10499       10499           0   65  Novell Netware 386
Partition 3 does not end on cylinder boundary.
/dev/sdb4          167628      167631       25817+   0  Empty
Partition 4 does not end on cylinder boundary.

Partition table entries are not in disk order
li@ubuntu:/$ ls
bin   cdrom  etc   initrd      lib         media  opt   root  srv  tmp  var
boot  dev    home  initrd.img  lost+found  mnt    proc  sbin  sys  usr  vmlinuz
li@ubuntu:/$ sudo mkdir /dedia/disk
mkdir: cannot create directory `/dedia/disk': No such file or directory
li@ubuntu:/$ sudo mkdir /media/disk
li@ubuntu:/$ ls media
cdrom  cdrom0  disk  floppy  floppy0  sda8  sdb8  sub-hdd  usb-disk
li@ubuntu:/$ sudo mount -t ntfs-3g /dev/sdb /media/disk -o force
li@ubuntu:/$ ls media/disk
Autorun.inf                 e_book     Lingoes       RECYCLER
bc7b0af0e6e7aeac626b098bbc  Favorites  movie         soft
c_c++                       initrd     picture       System Volume Information
drv                         java       $RECYCLE.BIN
li@ubuntu:/$ sudo umount /media/disk
li@ubuntu:/$