Vagrant.configure("2") do |config| config.vm.box = "offensive-security/kali-linux" config.vm.box_version = "2018.3.1" config.vm.provider "virtualbox" do |vb| vb.gui = false vb.memory = "4096" end config.vm.provision "shell", inline: <<-SHELL apt-get update apt-get install -y crowbar SHELL end