在openwrt上市可以挂载ntfs分区的，但是如果原来如果搞过win，或者异常关机，那么会遇到以下的错误：
root@Openwrt:/etc/config# mount -t ntfs -o rw,auto,user,fmask=0022,dmask=0000,exec /dev/sda1 /mnt/sda1
The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
Falling back to read-only mount because the NTFS partition is in an
unsafe state. Please resume and shutdown Windows fully (no hibernation
or fast restarting.)
然后就只读了，能看不能写入，那么怎么解决了，重新拖回windows，关闭快速启动，正常关机？
NO! NO! NO!，只要进行一下磁盘检查：
ntfsfix /dev/sda1
root@Openwrt:/etc/config# ntfsfix /dev/sda1
Mounting volume... The disk contains an unclean file system (0, 0).
Metadata kept in Windows cache, refused to mount.
FAILED
Attempting to correct errors...
Processing $MFT and $MFTMirr...
Reading $MFT... OK
Reading $MFTMirr... OK
Comparing $MFTMirr to $MFT... OK
Processing of $MFT and $MFTMirr completed successfully.
Setting required flags on partition... OK
Going to empty the journal ($LogFile)... OK
Checking the alternate boot sector... OK
NTFS volume version is 3.1.
NTFS partition /dev/sda1 was processed successfully.
然后：
mount -t ntfs -o rw,auto,user,fmask=0022,dmask=0000,exec /dev/sda1 /mnt/sda1
好了，这样就没问题了，其他linux系统类似处理就好了