JRuby 1.0.3 was recently released and so was Rails 2.0. I decided to try JRuby 1.0.3 + Rails 2.0 and realized that a few additional steps (because of Rails 2.0) are required to get a trivial Hello World applcation up and running. Here are the steps:

Unzip JRuby 1.0.3.

Make sure to set JAVA_HOME and JRUBY_HOME.

Also include JAVA_HOME/bin and JRUBY_HOME/bin in PATH for convenience.

Install Rails 2.0 as shown below:

~/samples/jruby arungupta$ jruby -S gem install rails --include-dependencies

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