This is my weekend project script. Script will help you to remove, install and set new OpenVas installation + updates. Run as root.
sudo -s
wget https://github.com/ZEROF/BackBox-Scripts/blob/master/OpenVas_reinstall.sh -O openvas.sh
chmod +x openvas.sh
./openvas.sh
Screen: http://s30.postimg.org/rg9vu6wu9/capture4.jpg
Tested only with BackBox Linux 3.13. Be free to test with other debian/ubuntu distros.