abort generation/booting on Ruby 1.9.1

railties/CHANGELOG

@@ -1,5 +1,6 @@
 *Rails 3.0.0 [Release Candidate] (unreleased)*
 
+* Abort generation/booting on Ruby 1.9.1. [fxn]
 * Made the rails command work even when you're in a subdirectory [Chad Fowler]
 
 

railties/guides/source/3_0_release_notes.textile

@@ -32,11 +32,11 @@ h3. Upgrading to Rails 3
 
 If you're upgrading an existing application, it's a great idea to have good test coverage before going in. You should also first upgrade to Rails 2.3.5 and make sure your application still runs as expected before attempting to update to Rails 3. Then take heed of the following changes:
 
-h4. Rails 3 requires Ruby 1.8.7+
+h4. Rails 3 requires at least Ruby 1.8.7
 
 Rails 3.0 requires Ruby 1.8.7 or higher. Support for all of the previous Ruby versions has been dropped officially and you should upgrade as early as possible. Rails 3.0 is also compatible with Ruby 1.9.2.
 
-TIP: Note that Ruby 1.8.7 p248 and p249 has marshaling bugs that crash Rails 3.0.0. Ruby Enterprise Edition have these fixed since release 1.8.7-2010.02 though. On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults on Rails 3.0.0, so if you want to use Rails 3 with 1.9.x jump on 1.9.2 for smooth sailing.
+TIP: Note that Ruby 1.8.7 p248 and p249 has marshaling bugs that crash Rails 3.0. Ruby Enterprise Edition have these fixed since release 1.8.7-2010.02 though. On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults on Rails 3.0, so if you want to use Rails 3 with 1.9.x jump on 1.9.2 for smooth sailing.
 
 h4. Rails Application object
 

railties/guides/source/getting_started.textile

@@ -17,7 +17,7 @@ This guide is designed for beginners who want to get started with a Rails applic
 
 * The "Ruby":http://www.ruby-lang.org/en/downloads language version 1.8.7 or higher
 
-TIP: Note that Ruby 1.8.7 p248 and p249 has marshaling bugs that crash Rails 3.0.0. Ruby Enterprise Edition have these fixed since release 1.8.7-2010.02 though. On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults on Rails 3.0.0, so if you want to use Rails 3 with 1.9.x jump on 1.9.2 for smooth sailing.
+TIP: Note that Ruby 1.8.7 p248 and p249 has marshaling bugs that crash Rails 3.0. Ruby Enterprise Edition have these fixed since release 1.8.7-2010.02 though. On the 1.9 front, Ruby 1.9.1 is not usable because it outright segfaults on Rails 3.0, so if you want to use Rails 3 with 1.9.x jump on 1.9.2 for smooth sailing.
 
 * The "RubyGems":http://rubyforge.org/frs/?group_id=126 packaging system
 * A working installation of the "SQLite3 Database":http://www.sqlite.org

railties/lib/rails/ruby_version_check.rb

@@ -7,4 +7,10 @@
     You're running #{ruby_release}; please upgrade to continue.
 
   end_message
+elsif RUBY_VERSION == '1.9.1'
+  abort <<-EOS
+  
+    Rails 3 does not work with Ruby 1.9.1. Please upgrade to 1.9.2.
+
+  EOS
 end

railties/test/application/initializers/check_ruby_version_test.rb

@@ -9,9 +9,11 @@ def setup
       boot_rails
     end
 
-    test "rails initializes with ruby 1.8.7 or later" do
+    test "rails initializes with ruby 1.8.7 or later, except for 1.9.1" do
       if RUBY_VERSION < '1.8.7'
         assert_rails_does_not_boot
+      elsif RUBY_VERSION == '1.9.1'
+        assert_rails_does_not_boot
       else
         assert_rails_boots
       end