大概的错误信息是这样的：
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/文檔"' 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.
解决方法：
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；
2. sudo ntfsfix /dev/sdb4
OK 问题解决