additional_disk_to_vagrant.rb

Vagrant.configure("2") do |config|
  config.vm.box = "base"
   
  # strat with Vagrant configuration v2 need specify VM provider
  config.vm.provider :virtualbox do |vb|
    file_to_disk = '/tmp/large_disk.vdi'
    # disk size 50GB
    vb.customize ['createhd', '--filename', file_to_disk, '--size', 50 * 1024]
    vb.customize ['storageattach', :id, '--storagectl', 'SATA', '--port', 1, '--device', 0, '--type', 'hdd', '--medium', file_to_disk]
  end
end