[root@localhost ~]# sudo ntfsfix /dev/sda3
Mounting volume... NTFS signature is missing.
FAILED
Attempting to correct errors... NTFS signature is missing.
FAILED
Failed to startup volume: Invalid argument
NTFS signature is missing.
Trying the alternate boot sector
Unrecoverable error
Volume is corrupt. You should run chkdsk.
[root@localhost ~]# sudo fsck /dev/sda3
fsck from util-linux 2.22.1
e2fsck 1.42.5 (29-Jul-2012)
fsck.ext2: Attempt to read block from filesystem resulted in short read while trying to open /dev/sda3
Could this be a zero-length partition?