Liens de rappel en vrac
https://askubuntu.com/questions/802668/virtualbox-installation-gives-message-modprobe-vboxdrv-failed
https://askubuntu.com/questions/920689/how-to-fix-modprobe-vboxdrv-error-in-virtualbox
https://askubuntu.com/questions/760671/could-not-load-vboxdrv-after-upgrade-to-ubuntu-16-04-and-i-want-to-keep-secur