今日在拷贝文件时，可能是没注意到文件还没写入Ｕ盘，强行将其拔出，不料却出现无法挂载的情况：
Error mounting /dev/sdb4 at /media/xxx/xx: Command-line`mount -t "ntfs" -o"uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177""/dev/sdb4"
"/media/eden/文档"' exited with non-zero exit status14: The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Failed to mount '/dev/sdb4': Operation not permitted
The NTFS partition is in an unsafe state. Please resume andshutdown
Windows fully (no hibernation or fast restarting), or mount thevolume
read-only with the 'ro' mount option.
究其原因，估计是拔出时文件还未写完，出现故障，逐步排查如下:
１、打开终端，输入sudo fdisk -l 可列出所有的分区情况，找到自己Ｕ盘的分区；
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = 扇区 of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x13bcd83a
设备 启动 起点 终点 块数 Id 系统
/dev/sda1 * 63 163846934 81923436 7 HPFS/NTFS/exFAT
分区 1 未起始于物理扇区边界。
/dev/sda2 163846996 859797503 347975254 f W95 扩展 (LBA)
分区 2 未起始于物理扇区边界。
/dev/sda5 163846998 404500634 120326818+ 7 HPFS/NTFS/exFAT
分区 5 未起始于物理扇区边界。
/dev/sda6 404500698 645138269 120318786 7 HPFS/NTFS/exFAT
分区 6 未起始于物理扇区边界。
/dev/sda7 645138333 693843008 24352338 7 HPFS/NTFS/exFAT
分区 7 未起始于物理扇区边界。
/dev/sda8 693843968 697843711 1999872 82 Linux 交换 / Solaris
/dev/sda9 697845760 797843455 49998848 83 Linux
/dev/sda10 797845504 857843711 29999104 83 Linux
/dev/sda11 857845760 859797503 975872 83 Linux
Disk /dev/sdb: 8004 MB, 8004304896 bytes
255 heads, 63 sectors/track, 973 cylinders, total 15633408 sectors
Units = 扇区 of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcad4ebea
设备 启动 起点 终点 块数 Id 系统
/dev/sdb4 * 256 15633407 7816576 7 HPFS/NTFS/exFAT
2、得知分区为：/dev/sdb4，创建挂载目录：
sudo mkdir /media/xxx/yyy (xxx为用户名，yyy为挂载的Ｕ盘的名字)
３、挂载Ｕ盘：
mount -t ntfs-3g /dev/sdb4 /media/xxx/yyy/ -o force
如此做之后，还是会出现错误:
$MFTMirr
does not match $MFT (record 0).
Failed to mount '/dev/sdb6': 输入/输出错误
NTFS is either inconsistent, or there is a hardware fault, or it's a
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows twice. The usage of the /f parameter is very
important! If the device is a SoftRAID/FakeRAID then first activate
it and mount a different device under the /dev/mapper/ directory, (e.g.
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
for more details.
４、还是不行，网上一搜，用以下命令，大功告成：
sudo
ntfsfix /dev/sdb6
Mounting
volume... FAILED
Attempting to correct errors...
Processing $MFT and $MFTMirr...
Reading $MFT... OK
Reading $MFTMirr... OK
Comparing $MFTMirr to $MFT... FAILED
Correcting differences in $MFTMirr record 0...OK
Processing of $MFT and $MFTMirr completed successfully.
Setting required flags on partition... OK
Going to empty the journal ($LogFile)... OK
NTFS volume version is 3.1.
NTFS partition /dev/sdb6 was processed successfully.
看来以后自己得小心插拔Ｕ盘了。
