$ vagrant up Bringing machine 'default' up with 'virtualbox' provider... ==> default: Importing base box 'opscode-ubuntu-14.04'... .... SSH address: 127.0.0.1:2201 ... $ knife zero bootstrap 127.0.0.1 --ssh-port 2201 --ssh-user vagrant --node-name test -i ./.vagrant/machines/default/virtualbox/private_key --sudo Doing old-style registration with the validation key at ... Delete your validation key