有一块新买的1T的移动硬盘。买来格式化成ntfs后简单的分了几次区。 4G的硬盘PE，100G的快速交互，剩余800多G分成了两个对等的存储盘。
插到电脑USB接口后， 桌面自动弹出了4个盘符。 打开前2个都没有什么问题， 写读都正常。后面两个一双击就会报错：
Error mounting: mount exited with exit code 1: helper failed with:
Unprivileged user can not mount NTFS block devices using the external FUSE
library. Either mount the volume as root, or rebuild NTFS-3G with integrated
FUSE support and make it setuid root. Please see more information at
#unprivileged
大意就是这个ntfs-3g 没权限无法挂载，不管是不是root 。
现在我们来解决掉这个问题：
首先看看挂载， 先拔掉移动硬盘 执行 再插上执行， 会发现多了sdb3，sdb5
root@debian:/# cat /etc/mtab
rootfs / rootfs rw 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
udev /dev devtmpfs rw,relatime,size=10240k,nr_inodes=1015602,mode=755 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=813700k,mode=755 0 0
/dev/disk/by-uuid/4c487d8c-396c-4601-b76d-eff7118d6775 / ext4 rw,relatime,errors=remount-ro,user_xattr,barrier=1,data=ordered 0 0
tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
tmpfs /run/shm tmpfs rw,nosuid,nodev,noexec,relatime,size=4446660k 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
rpc_pipefs /var/lib/nfs/rpc_pipefs rpc_pipefs rw,relatime 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,nosuid,nodev,noexec,relatime 0 0
/dev/sdb3 /media/PE vfat rw,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0077,codepage=cp437,iocharset=utf8,shortname=mixed,showexec,utf8,flush,errors=remount-ro 0 0
/dev/sdb5 /media/T1 fuseblk rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096 0 0
可以看到sdb是我的移动硬盘的， 但是只挂载了2个盘符。
查看下硬盘现状
fdisk -l
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xb73dddb4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 209719295 104858624 7 HPFS/NTFS/exFAT
Partition 2 does not start on physical sector boundary.
/dev/sda3 1258387456 1925328895 333470720 83 Linux
/dev/sda4 1925330944 1953523711 14096384 82 Linux swap / Solaris
Disk /dev/sdb: 1000.2 GB, 1000204138496 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953523708 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x6b7612b3
Device Boot Start End Blocks Id System
/dev/sdb1 209921355 839685419 314882032+ 7 HPFS/NTFS/exFAT
/dev/sdb2 839685420 1953520064 556917322+ 7 HPFS/NTFS/exFAT
/dev/sdb3 63 8401994 4200966 b W95 FAT32
/dev/sdb4 8401995 209921354 100759680 f W95 Ext'd (LBA)
/dev/sdb5 8402058 209921354 100759648+ 7 HPFS/NTFS/exFAT
Partition table entries are not in disk order
注意看， 这里识别了Disk /dev/sdb 1000.2 GB
但是挂载出错了。 下面报了一个错，
Partition table entries are not in disk order
说硬盘分区表不在硬盘的顺序里面，意思就是移动硬盘的分区表乱了，
既然是这样就简单了， 用fdisk来重建分区表即可, fdisk 挂载设备， 然后f w 就可以更新分区表了。
root@debian:/# fdisk /dev/sdb
Command (m for help): x
Expert command (m for help): f
Done.