USB can not detected in VirtualBox

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The USB problems can not detected in VirtualBox 3.2 in debian Lenny,

When using virtualbox 3.2 on debian Lenny, USB can not detected in VirtualBox virtualbox usb not detected on, the signs can be recognized but can not be in check (usb still berwarne gray).
For how to deal with this fairly simple, namely:
1. Look at your virtualbox user id:
grep vbox / etc / group

2. Example result = vboxusers: X: 116:
So, 116 is iduser, edit our fstab and enter your user behind
nano / etc / group
enter "vboxusers: x: 116:
username "on the bottom row

3. Enter none / proc / bus / usb usbfs devgid = iduser, devmode = 664 0 0 in fstab
nano / etc / fstab
enter none / proc / bus / usb usbfs devgid = iduser, devmode = 664 0 0

Now restart the debian, and reopen your virtualbox
resolves that USB can not detected in VirtualBox