Automatically upgrade the boxes all over.

lib/vagrant/action/box/add.rb

@@ -12,7 +12,17 @@ module Vagrant
 
         def call(env)
           @env[:ui].info I18n.t("vagrant.actions.box.add.adding", :name => env[:box_name])
-          env[:box_collection].add(env[:box_download_temp_path], env[:box_name])
+
+          begin
+            env[:box_collection].add(env[:box_download_temp_path], env[:box_name])
+          rescue Vagrant::Errors::BoxUpgradeRequired
+            # Upgrade the box
+            env[:box_collection].upgrade(env[:box_name])
+
+            # Try adding it again
+            retry
+          end
+
           @app.call(env)
         end
       end

plugins/commands/box/command/remove.rb

@@ -16,7 +16,14 @@ module VagrantPlugins
           return if !argv
           raise Vagrant::Errors::CLIInvalidUsage, :help => opts.help.chomp if argv.length < 2
 
-          b = @env.boxes.find(argv[0], argv[1].to_sym)
+          b = nil
+          begin
+            b = @env.boxes.find(argv[0], argv[1].to_sym)
+          rescue Vagrant::Errors::BoxUpgradeRequired
+            @env.boxes.upgrade(argv[0])
+            retry
+          end
+
           raise Vagrant::Errors::BoxNotFound, :name => argv[0] if !b
           b.destroy!
 

plugins/commands/box/command/repackage.rb

@@ -21,8 +21,15 @@ module VagrantPlugins
           box_provider = argv[1].to_sym
 
           # Verify the box exists that we want to repackage
-          box = @env.boxes.find(box_name, box_provider)
-          raise Vagrant::Errors::BoxNotFound, :name => box_name if !b
+          box = nil
+          begin
+            box = @env.boxes.find(box_name, box_provider)
+          rescue Vagrant::Errors::BoxUpgradeRequired
+            @env.boxes.upgrade(box_name)
+            retry
+          end
+
+          raise Vagrant::Errors::BoxNotFound, :name => box_name if !box
 
           # Repackage the box
           output_path = File.expand_path(@env.config.global.package.name, FileUtils.pwd)