Fix rails server

railties/lib/generators/rails/app/templates/script/rails

@@ -3,6 +3,7 @@
 ENV_PATH  = File.expand_path('../../config/environment',  __FILE__)
 BOOT_PATH = File.expand_path('../../config/boot',  __FILE__)
 APP_PATH  = File.expand_path('../../config/application',  __FILE__)
+ROOT_PATH = File.expand_path('../..',  __FILE__)
 
 require BOOT_PATH
 require 'rails/commands/rails'

railties/lib/rails/commands/rails.rb

@@ -33,7 +33,7 @@
   Rails::Console.start(Rails::Application)
 when 's', 'server'
   require 'rails/commands/server'
-  Dir.chdir(File.expand_path('../..',  __FILE__))
+  Dir.chdir(ROOT_PATH)
   Rails::Server.start
 
 when 'dbconsole'