myfdisk

[root@localhost ~]# mount -t ntfs /dev/hdb1 /mnt/hdb1
NTFS signature is missing.
Failed to startup volume: Argumento inválido
Failed to mount '/dev/hdb1': Argumento inválido
The device '/dev/hdb1' doesn't have a valid NTFS.
Maybe you selected the wrong device? Or the whole disk instead of a
partition (e.g. /dev/hda, not /dev/hda1)? Or the other way around?