[Assist] Issue mounting device with 'pmount' and 'mount'

[Scott Adams]

I will plug in a usb drive, then run:

"pmount /dev/sdf1 scott"

The terminal will output:

"mount: unknown filesystem type 'ntfs'"


With 'mount':

mount /dev/sdf1

The terminal will output:

can't find /dev/sdf1 in /etc/fstab


Many, many times I have used both methods to mount this usb, and now the 
occurs.

I found this, but really, why should I have to go through all of that 
when everything has worked before?

Anyway I could trace the source causing the problem?

(mounts just fine on my x200 running Trisquel)