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52 lines
1.7 KiB
Markdown
52 lines
1.7 KiB
Markdown
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---
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title: Enable USB Sharing
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layout: default
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created: 2008-09-03 23:08:39 +0200
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updated: 2009-05-05 12:25:03 +0200
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toc: false
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tags:
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- know-how
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- software
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- linux
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---
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To use USB devices under e.g. [VirtualBox](http://virtualbox.org/) in *Hardy*, edit the file
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`/etc/init.d/mountdevsubfs.sh` and find the line:
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# Magic to make /proc/bus/usb work
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Remove the following four comments so that it looks like this:
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{% highlight bash %}
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#
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# Magic to make /proc/bus/usb work
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#
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mkdir -p /dev/bus/usb/.usbfs
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domount usbfs "" /dev/bus/usb/.usbfs -obusmode=0700,devmode=0600,listmode=0644
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ln -s .usbfs/devices /dev/bus/usb/devices
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mount --rbind /dev/bus/usb /proc/bus/usb
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{% endhighlight %}
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Also add the following line to your `/etc/fstab` (*129* is the group-ID of *vboxusers*)[^1]:
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none /proc/bus/usb usbfs devgid=129,devmode=0666 0 0
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Now enable the new settings by doing:
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sudo /etc/init.d/mountdevsubfs.sh stop
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sudo /etc/init.d/mountdevsubfs.sh start
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Finally, edit the file `/etc/udev/rules.d/40-basic-permissions.rules` and find the line containing the `usb_device`
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subsystem. Extend the permissions to `0666` like this:
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SUBSYSTEM="usb_device", MODE="0666"
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Save the file and you should be able to use USB devices inside VirtualBox guest systems.
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According to [Ubuntu Unleashed](http://www.ubuntu-unleashed.com/2008/04/howto-install-virtualbox-in-hardy-heron.html),
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you might have to add 2 lines to the `/etc/init.d/mountkernfs.sh` for the *usbfs* to get mounted automatically upon boot.
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I'm also not sure about the permissions. It might work also using `0664` or even `0644`.
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[^1]: see [Stone.log](http://yoten.blogspot.com/2007/06/virtualbox-usb-error.html)
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