Testing on server gives the following in /etc/apt/sources.list after initial install:
- deb http://archive.ubuntu.com/ubuntu bionic main
- deb http://archive.ubuntu.com/ubuntu bionic-security main
- deb http://archive.ubuntu.com/ubuntu bionic-updates main
You may be using a different ftp/http location, but just adding 'multiverse' to each line should achieve the same result. I ended up with:
- deb http://archive.ubuntu.com/ubuntu bionic main multiverse
- deb http://archive.ubuntu.com/ubuntu bionic-security main multiverse
- deb http://archive.ubuntu.com/ubuntu bionic-updates main multiverse
I then ran the following commands to update and install the required modules:
- sudo apt update
- sudo apt install virtualbox-guest-utils virtualbox-guest-dkms dkms linux-headers-generic build essential
