我是这个平台的新手，所以我对 Ubuntu 了解不多，现在我已经安装了最新的 Ubuntu 版本，即 Ubuntu 14.04.1 LTS（64 位），我的电脑上已经安装了 Windows 8，并且我取消了快速启动选项，但我仍然收到以下错误......有人可以帮我吗......？提前谢谢
Error mounting /dev/sdb4 at /media/mr-x/Movies n Songs: Command-line `mount -t "ntfs" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,dmask=0077,fmask=0177" "/dev/sdb4" "/media/mr-x/Movies n Songs"' exited with non-zero exit status 12: Failed to read last sector (669564927): Invalid argument
HINTS: Either the volume is a RAID/LDM but it wasn't setup yet,
or it was not setup correctly (e.g. by not using mdadm --build ...),
or a wrong device is tried to be mounted,
or the partition table is corrupt (partition is smaller than NTFS),
or the NTFS boot sector is corrupt (NTFS size is not valid).
Failed to mount '/dev/sdb4': Invalid argument
The device '/dev/sdb4' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?