trying to undelete some files using ntfsundelete:
sudo ntfsundelete /dev/sda1 -v -S 300m-20g -p 100 -o /mnt/bigboy/ntfsundelete/
but I am getting:
You must specify exactly one device.
as far as I can see, I am specifying the device I want to restore files from, and the location of the files.
What am I getting wrong?