The following post gives a brief description on how to install minikube in an Virtual Box environment.
Login to your ubuntu VM from your virtual box and follow the commands
sudo apt-get install virtualbox
Cd /usr/local/bin
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
chmod +x minikube
Install dockersudo apt-get update
sudo apt-get remove docker docker-engine docker.io
sudo apt install docker.io
sudo systemctl start docker
sudo systemctl enable docker
minikube --vm-driver=none start