Installing the Web application framework Rails on Fedora Core 3 is not as straightforward as the instructions suggest. FC3 comes with the required Ruby 1.8.1 RPM, but if you try to install Rails with Ruby Gems, it crashes with the error /usr/lib/ruby/1.8/yaml.rb:39: [BUG] Segmentation fault.

So, deinstall the ruby and ruby-libs RPMs, and install Ruby and Gem from the source:

1. Download Ruby 1.8.2+. Install it with ./configure && make && make install

2. Download rubygems 0.8.1+. Install it with ruby install.rb

Update 29 Jan 2005: The new Ruby 1.8.2 RPM in the FC3 update channel can be used to install Rails. Just be sure to also install irb and ruby-devel. The latter is needed for installing the Ruby PostgreSQL driver, and probably other database drivers.