How do you automount usb drives directly to VirtualBox in ubuntu 12.04
As I understood, there are two versions of Virtualbox. One is open source and doesn't have the possibility to automount USB devices. There is another version with a freeware license (downloadable from the oracle website only), that would give the possibility to do so. I don't know if it really works or if it doesn't, but take a look at this.
I managed to solve this myself. This is only for USB Storage (which I needed)
Remember to create a usb filter on your Vbox machine that takes all USB devices and makes it available.
Create an udev rule file in /etc/udev/rules.d
I called mine 80-automnt.rules
Create the /etc/udev/vboxusb.sh file.