VirtualBox Knowledge Base

The VirtualBox knowledge base is a database of common questions along with their answers and should be consulted every time you run into a problem that is not described in the product manual. The knowledge base is updated on a daily basis and it is best to use the search feature of the site to find suitable information.

• Directly after an installation on a a Linux host, make sure that your user account is listed in the vboxusers group. The installation should take care of this, but on Linux, changes in group memberships do not take effect for a user account until all processes of that account have ended. Often, people attempt to start the VirtualBox executable, which starts the VBoxSVC service process, which keeps running in the background, preventing the group membership change from taking effect. Running "VirtualBox shutdown" from the command line terminates that service. (Alternatively, a reboot will help as well.)