alex@desktop:~$ sudo mkdir /mnt/Elements
alex@desktop:~$ sudo mount -t ntfs /dev/sdb1 /mnt/Elements
NTFS signature is missing.
Failed to mount '/dev/sdb1': Invalid argument
The device '/dev/sdb1' 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?