Shared folders marked with `:disabled` flag will be ignored.

lib/vagrant/action/vm/nfs.rb

@@ -63,14 +63,13 @@ module Vagrant
           # Load the NFS enabled shared folders
           @folders = @env["config"].vm.shared_folders.inject({}) do |acc, data|
             key, opts = data
-            acc[key] = opts if opts[:nfs]
-            acc
-          end
 
-          # Delete them from the original configuration so they aren't
+            if opts[:nfs]
-          # mounted by the ShareFolders middleware
+              acc[key] = opts.dup
-          @folders.each do |key, opts|
+              opts[:disabled] = true
-            @env["config"].vm.shared_folders.delete(key)
+            end
+
+            acc
           end
         end
 

lib/vagrant/action/vm/share_folders.rb

@@ -32,6 +32,8 @@ module Vagrant
           @env.env.config.vm.shared_folders.inject({}) do |acc, data|
             key, value = data
 
+            return acc if value[:disabled]
+
             # This to prevent overwriting the actual shared folders data
             value = value.dup
 

test/vagrant/action/vm/forward_ports_test.rb

@@ -19,6 +19,10 @@ class ForwardPortsVMActionTest < Test::Unit::TestCase
   end
 
   context "checking for threshold" do
+    setup do
+      @klass.any_instance.stubs(:external_collision_check)
+    end
+
     should "error if has a port below threshold" do
       @env.env.config.vm.forwarded_ports.clear
       @env.env.config.vm.forward_port("foo", 22, 222)

test/vagrant/action/vm/nfs_test.rb

@@ -93,6 +93,7 @@ class NFSVMActionTest < Test::Unit::TestCase
 
     context "extracting folders" do
       setup do
+        @env.env.config.vm.shared_folders.clear
         @env.env.config.vm.share_folder("v-foo", "/foo", ".", :nfs => true)
         @env.env.config.vm.share_folder("v-bar", "/bar", ".", :nfs => true)
       end
@@ -102,10 +103,11 @@ class NFSVMActionTest < Test::Unit::TestCase
         assert_equal 2, @instance.folders.length
       end
 
-      should "remove the folders from the original config" do
+      should "mark the folders disabled from the original config" do
         @instance.extract_folders
-        assert_equal 1, @env["config"].vm.shared_folders.length
+        %W[v-foo v-bar].each do |key|
-        assert @env["config"].vm.shared_folders.has_key?("v-root")
+          assert @env["config"].vm.shared_folders[key][:disabled]
+        end
       end
     end
 

test/vagrant/action/vm/share_folders_test.rb

@@ -85,6 +85,14 @@ class ShareFoldersVMActionTest < Test::Unit::TestCase
       end
     end
 
+    should "ignore disabled shared folders" do
+      stub_shared_folders do |config|
+        config.vm.share_folder("v-root", "/vagrant", ".", :disabled => true)
+      end
+
+      assert @instance.shared_folders.empty?
+    end
+
     should "append sync suffix if sync enabled to a folder" do
       name = "foo"
       guest = "bar"