I had Virtualbox 5.0 installed, but at every first VM start I got to execute the following command:
sudo /sbin/rcvboxdrv setup
So I decided to remove Virtualbox and install version 5.1 for Ubuntu 16.04. That was a bad decision. I can't get it working.
$ sudo dpkg -i virtualbox-5.1_5.1.8-111374~Ubuntu~xenial_amd64.deb Selecting previously unselected package virtualbox-5.1. (Reading database ... 814705 files and directories currently installed.) Preparing to unpack virtualbox-5.1_5.1.8-111374~Ubuntu~xenial_amd64.deb ... Unpacking virtualbox-5.1 (5.1.8-111374~Ubuntu~xenial) ... dpkg: dependency problems prevent configuration of virtualbox-5.1: virtualbox-5.1 depends on libqt5x11extras5 (>= 5.1.0); however: Package libqt5x11extras5 is not installed. $ sudo apt install libqt5x11extras5 Reading package lists... Done Building dependency tree Reading state information... Done Package libqt5x11extras5 is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'libqt5x11extras5' has no installation candidate
How can I get Virtualbox 5.1 installed on Ubuntu 16.04?