So if the COM port# is 2, we set the port as COM2, set mode to Host-Device, and the path/file to 'COM2:' (don't forget the trailing colon, but of course, without the '' marks). So internally the serial-port driver is used in Linux, not the usb-serial (FTDI driver). let the FTDI USB-serial converter be seen as a serial-port in the guestVM, not as a USB device. Next, in the Virtualbox console, change the guestVM properties, and enable Serial Port settings, i.e. Via Win7 Device-Manager > Ports > COMxy (where 'xy' is default port#), select 'Advanced Settings' and then change the COM port no. To make this change, you need to ensure that the FTDI USB-serial device hasn't been claimed and attached to Virtualbox guestVM, i.e. This is typically needed because Virtualbox has some issues dealing with COM port number in double-digits (e.g. Since that link might go away some day, or might get behind an authentication scheme, the key steps are:Ĭhange the COM port number of the FTDI USB-serial port, assigned by default.

That did solve the problem, and I can now use Arduino IDE (or avrdude in general, from command-line), from within my Crunchbang 'Waldorf' guestVM (a Debain based super-light distro) - running on Windows 7 Professional 64-bit host.

Actually, I had already tried the method suggested by and running lsusb did show that the FTDI usb device was recognized within Virtualbox, however, I kept getting avrdude failure.įinally the solution was found in this post at the Virtualbox forum.

What is virtualbox usb controller