'No mount point' when trying to mount USB drive

I am new to Linux and chose Zorin to be my distro! I have an external hd mounted to usb. when checking disks it finds it. However when i try to mount it it tells me failed to mount “root only”. I try to mount using root. Terminal tells me “No mount point”.
any help would be appreciated. Tia

dlmartins2001, welcome to the forum.

What happens if you run

sudo mkdir /media/usb-drive

mount -t auto /dev/sdb /media/usb-drive

in terminal?