Install Virtualbox 6.0 linux mint, ubuntu

Install Virtualbox

echo "deb http://download.virtualbox.org/virtualbox/debian bionic contrib" | sudo tee -a /etc/apt/sources.list

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -

apt update

apt install virtualbox-6.0

remove Virtualbox

sudo apt-get remove --purge virtualbox

or

sudo apt-get remove --purge virtualbox-6.0