Ubuntu Core + Trusty 64 Dev multi-machine vagrant setup

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
VAGRANTFILE_API_VERSION = "2"

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  config.vm.define "core" do |core|
    core.vm.box = "ubuntu/ubuntu-core-devel-amd64"
  end

  config.vm.define "dev" do |dev|
    dev.vm.box = "ubuntu/trusty64"
  end
end