Get a * Base MAC address for eth0/NAT must be set. Contact box maintainer for more information. error

Broken Two VM Vagrantfile

Vagrant::Config.run do |config|
  config.vm.box = "lucid32"

  config.vm.provisioner = :chef_solo

  config.chef.cookbooks_path = "cookbooks"

  config.chef.add_recipe("vagrant_main")
  #config.vm.forward_port("web", 80, 4567)

  config.vm.define :web do |web_config|
    web_config.vm.box = "web"
    web_config.vm.forward_port("http", 80, 8080)
    web_config.vm.network("192.168.1.10")
  end

  config.vm.define :db do |db_config|
    db_config.vm.box = "db"
    db_config.vm.forward_port("db", 3306, 3306)
    db_config.vm.network("192.168.1.11")
  end
end

Yup - that was the problem with this one. The db_config.vm.box = "db" should read db_config.vm.box = "lucid32". This was cribbed from the vagrant wiki example, so hopefully that'll get updated.