Question

Any blog or tutorial for installation of JRuby 1.6.7 and Rails 3 on Ubuntu?

Answer 1

First install rvm:

$ bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)
$ source ~/.bash_profile

Once rvm is installed, use it to install jruby:

$ rvm install jruby-1.6.7

You can then use that version:

$ rvm use jruby-1.6.7 

Finally, install rails:

$ jruby -S gem install rails

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Update

With more recent versions of rvm, installing the latest version of jruby and rails is very straightforward:

$ \curl -L https://get.rvm.io | bash -s stable --autolibs=3 --ruby=jruby --gems=rails