I have a problem when trying to work with USB devices mounted with user 'root'. I explain, I mount a USB device as root under command line (console mode only), and I can work with that device with no problem, but when changing to one limited account, that device mounted is in read-only mode. I've tried to apply chmod and chown but not to work. Also, I've tried this:
$ sudo mount -t vfat -o rw,users /dev/sdb1 /mnt/pen/
and same result. How can I resolve this without using fstab file? I think there must be a solution, 'cause under X-Windows with a limited account, this USB device is recognized, mounted and worked with no problem.