Hello I have tried to mount my hard drive to a folder.
First I created a folder with mkdir, named /media/movies but when I tried to mount it using
sudo mount -t ntfs-3g -o uid=pi,gid=pi /dev/sda1 /media/movies/
I got the message
Mount is denied because the NTFS volume is already exclusively opened. The volume may be already mounted, or another software may use it which could be identified for example by the help of the 'fuser' command.
How can I fix this?