2Installation details

2.The kernel of your Linux host got updated. In that case, the kernel module will need to be reinstalled by executing (as root):

/etc/init.d/vboxdrv setup

2.3.3 USB and advanced networking support

In order to use VirtualBox’s USB support, the user account under which you intend to run VirtualBox must have read and write access to the USB filesystem (usbfs).

In addition, access to /dev/net/tun will be required if you want to use Host Interface Networking, which is described in detail in chapter 6.4, Bridged networking, page 92.

2.3.4 Performing the installation

VirtualBox is available in a number of package formats native to various common Linux distributions (see chapter 1.4, Supported host operating systems, page 14 for details). In addition, there is an alternative generic installer (.run) which should work on most Linux distributions.

2.3.4.1 Installing VirtualBox from a Debian/Ubuntu package

First, download the appropriate package for your distribution. The following examples assume that you are installing to an Ubuntu Edgy system. Use dpkg to install the Debian package:

sudo dpkg -i VirtualBox_3.1.0_BETA2_Ubuntu_edgy.deb

You will be asked to accept the VirtualBox Personal Use and Evaluation License. Unless you answer “yes” here, the installation will be aborted.

The group vboxusers will be created during installation. Note that a user who is going to run VirtualBox must be member of that group. A user can be made member of the group vboxusers through the GUI user/group management or at the command line with

sudo usermod -a -G vboxusers username

Also note that adding an active user to that group will require that user to log out and back in again. This should be done manually after successful installation of the package.

The installer will also search for a VirtualBox kernel module suitable for your kernel. The package includes pre-compiled modules for the most common ker- nel configurations. If no suitable kernel module is found, the installation script tries to build a module itself. If the build process is not successful you will be shown a warning and the package will be left unconfigured. Please have a look at /var/log/vbox-install.log to find out why the compilation failed. You may have to install the appropriate Linux kernel headers (see chapter 2.3.2, The VirtualBox kernel module, page 34). After correcting any problems, do

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Sun Microsystems VERSION 3.1.0_BETA2 user manual USB and advanced networking support