yuanheng@yuanheng-desktop:~$ sudo groupadd usbfs
groupadd：usbfs 组已存在
yuanheng@yuanheng-desktop:~$ sudo adduser yuanheng usbfs
用户“yuanheng”已经属于 usbfs 组。
yuanheng@yuanheng-desktop:~$ cat /etc/group | grep usbfs
usbfs
1001:yuanhengyuanheng@yuanheng-desktop:~$ sudo gedit /etc/fstab
Launching a SCIM daemon with Socket FrontEnd...
Loading simple Config module ...
Creating backend ...
Loading socket FrontEnd module ...
Starting SCIM as daemon ...
GTK Panel of SCIM 1.4.7
GTK Panel of SCIM 1.4.7
GTK Panel of SCIM 1.4.7
yuanheng@yuanheng-desktop:~$ sudo chmod 777 /proc/bus/usb
yuanheng@yuanheng-desktop:~$ sudo chown yuanheng /proc/bus/usb
yuanheng@yuanheng-desktop:~$
yuanheng@yuanheng-desktop:~$
yuanheng@yuanheng-desktop:~$
yuanheng@yuanheng-desktop:~$ VBoxManage list usbhost
VirtualBox Command Line Management Interface Version 3.0.8
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.
Host USB Devices:
UUID: fec2f151-7c14-4a56-990d-3e9d77127362
VendorId: 0x0951 (0951)
ProductId: 0x160b (160B)
Revision: 1.0 (0100)
Manufacturer: Kingston
Product: DataTraveler 2.0
SerialNumber: 0910031956270
Address: sysfs:/sys/devices/pci0000:00/0000:00:1d.7/usb1/1-4//device:/dev/bus/usb/001/004
Current State: Unavailable
yuanheng@yuanheng-desktop:~$
# /etc/fstab: static file system information.
#
# Use 'vol_id --uuid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# / was on /dev/sda5 during installation
UUID=a65bffbf-ea05-4342-a15e-d121b294563f / ext3 relatime,errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=503b82db-e968-408b-8c31-9772dba65bf1 /boot ext3 relatime 0 2
# /home was on /dev/sda6 during installation
UUID=1a59e830-fb77-4b98-abba-75bd3f14913e /home ext3 relatime 0 2
# swap was on /dev/sda2 during installation
UUID=a0e733e9-b824-4cde-b593-564269de934b none swap sw 0 0
none /proc/bus/usb usbfs devgid=1001,devmode=664 0 0
在虚拟机里面显示灰色
