Some fixes with defining new interfaces on Ubuntu

lib/vagrant/actions/vm/shared_folders.rb

@@ -38,10 +38,6 @@ module Vagrant
           end
 
           @runner.reload!
-
-          # Sleep to allow VirtualBox to clean things up. There seems
-          # to be no clean API call to do this.
-          sleep 1
         end
 
         def create_metadata

lib/vagrant/systems/linux.rb

@@ -76,7 +76,8 @@ module Vagrant
         # Remove any previous host only network additions to the
         # interface file.
         vm.ssh.execute do |ssh|
-          ssh.exec!("sudo su -c \"sed -e '/^#VAGRANT-BEGIN/,/^#VAGRANT-END/ d' /etc/network/interfaces > /etc/network/interfaces\"")
+          ssh.exec!("sudo sed -e '/^#VAGRANT-BEGIN/,/^#VAGRANT-END/ d' /etc/network/interfaces > /tmp/vagrant-network-interfaces")
+          ssh.exec!("sudo su -c 'cat /tmp/vagrant-network-interfaces > /etc/network/interfaces'")
         end
       end
 
@@ -86,6 +87,7 @@ module Vagrant
 
         vm.ssh.execute do |ssh|
           ssh.exec!("sudo su -c 'cat /tmp/vagrant-network-entry >> /etc/network/interfaces'")
+          ssh.exec!("sudo /etc/init.d/networking restart")
         end
       end
 

vagrant.gemspec

@@ -107,6 +107,7 @@ Gem::Specification.new do |s|
      "templates/chef_server_client.erb",
      "templates/chef_solo_solo.erb",
      "templates/crontab_entry.erb",
+     "templates/network_entry.erb",
      "templates/package_Vagrantfile.erb",
      "templates/rsync.erb",
      "templates/ssh_config.erb",