When accessing the settings dialog in VirtualBox on Ubuntu/Kubuntu 7.10 Gusty Gibbon, I would get the error, “Could not load the Host USB Proxy Service (VERR_FILE_NOT_FOUND). The service might be not installed on the host computer.” I found a variety of fixes from different forums and blogs so here’s a consolidated guide to resolve the issue based on my installation of VirtualBox 1.5.6 on Kubuntu 7.10.
- Open the file /etc/init.d/mountdevsubfs.sh with your favorite text editor (be sure to use sudo or open as root so that you have write permission).
- Look for the following comment:
# Magic to make /proc/bus/usb work
- Remove the hash mark, #, from the four commands (mkdir, domount, ln, mount) following that comment. The result should look like the following:
#
# Magic to make /proc/bus/usb work
#
mkdir -p /dev/bus/usb/.usbfs
domount usbfs “” /dev/bus/usb/.usbfs -obusmode=0700,devmode=0600,listmode=0644
ln -s .usbfs/devices /dev/bus/usb/devices
mount –rbind /dev/bus/usb /proc/bus/usb - Save the file and run it with sudo (or as root) appending the parameter “start” to the end:
sudo /etc/init.d/mountdevsubfs.sh start
- Next, create a new user group called usbusers. On Kubuntu, you can do this with the User Management tool in the KDE Control Center.
- Add your username, and anyone else who uses VirtualBox on the computer, to the usbusers group. Save the changes.
- Open the file /etc/udev/rules.d/40-permissions.rules (again, using sudo or as root).
- Change the following lines:
# USB devices (usbfs replacement)
SUBSYSTEM==”usb_device”, MODE=”0664″to
# USB devices (usbfs replacement)
SUBSYSTEM==”usb_device”, GROUP=”usbusers”, MODE=”0664″ - Save the file.
Now it should work fine and you don’t even have to reboot.
Tags: Linux, Ubuntu, VirtualBox
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Thanks so much for this. With it, I got USB support back in VirtualBox. =)
You’re welcome, Trip. Glad it worked well for you too.
Works here too
Thank you very much.
Thanks for the feedback, Nick.
i still have the problem. I am using ubuntu 8.04 instead. The file /etc/udev/rules.d/40-permissions.rules
does not have any SUBSYSTEM==»usb_device», MODE=»0664»
please help me
bobspp
I too had this issue in Hardy… here is what I did to solve it thanks to this site ;-)
# USB serial converters
SUBSYSTEM==”usb_device”, GOTO=”usb_serial_start”
SUBSYSTEM==”usb”, ENV{DEVTYPE}==”usb_device”, GOTO=”usb_serial_start”
GOTO=”usb_serial_end”
LABEL=”usb_serial_start”
SUBSYSTEM==”usb_device”, GROUP=”vboxusers”, MODE=”0664″
ATTRS{idVendor}==”0403″, ATTRS{idProduct}==”6001″, \
MODE=”0660″, GROUP=”dialout”
LABEL=”usb_serial_end”
In Ubuntu 8.04 (Gutsy Gibbon), I found the USB Devices permissions are in 40-basic-permissions.rules now.
@falsehope: Thanks for the additional info.
@napalmgod: Thanks for the tip for 8.04.