Hi, I am a newbie to linux and I am trying to install rubygems. I have installed Ruby and that seems fine but when I try to install Gems (I am using the files from <a href="http://www.rubyonrails.org">www.rubyonrails.org</a>), this is what I get:- pjt@pjtlaptop:~/rubygems-0.8.11$ sudo ruby setup.rb ---> bin <--- bin ---> lib ---> lib/rubygems <--- lib/rubygems <--- lib ---> bin adjusting shebang: gem_mirror <--- bin ---> lib ---> lib/rubygems <--- lib/rubygems <--- lib rm -f InstalledFiles ---> bin mkdir -p /usr/local/bin/ install gemwhich /usr/local/bin/ install gem /usr/local/bin/ install gem_server /usr/local/bin/ install generate_yaml_index.rb /usr/local/bin/ install update_rubygems /usr/local/bin/ sudo gem install rails --include-dependencies /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__': No such file to load -- zlib (LoadError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/package.rb:9 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/builder.rb:1 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:61:in `manage_gems' from /usr/local/bin/gem:4 install gem_mirror /usr/local/bin/ <--- bin ---> lib mkdir -p /usr/local/lib/ruby/site_ruby/1.8/ install ubygems.rb /usr/local/lib/ruby/site_ruby/1.8/ install rubygems.rb /usr/local/lib/ruby/site_ruby/1.8/ install gemconfigure.rb /usr/local/lib/ruby/site_ruby/1.8/ ---> lib/rubygems mkdir -p /usr/local/lib/ruby/site_ruby/1.8/rubygems install specification.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install builder.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install command.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install config_file.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install custom_require.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install doc_manager.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install format.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install cmd_manager.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install gem_runner.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install installer.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install loadpath_manager.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install old_format.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install open-uri.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install package.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install remote_installer.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install rubygems_version.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install source_index.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install deployment.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install timer.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install user_interaction.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install validator.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install version.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install gem_commands.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install dependency_list.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install security.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems install gem_openssl.rb /usr/local/lib/ruby/site_ruby/1.8/rubygems <--- lib/rubygems <--- lib As of RubyGems 0.8.0, library stubs are no longer needed. Searching $LOAD_PATH for stubs to optionally delete (may take a while)... ...done. No library stubs found. /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__': No such file to load -- zlib (LoadError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/package.rb:9 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/builder.rb:1 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require__' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:21:in `require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems.rb:61:in `manage_gems' ... 7 levels... from setup.rb:887:in `exec_install' from setup.rb:705:in `invoke' from setup.rb:674:in `invoke' from setup.rb:1352 pjt@pjtlaptop:~/rubygems-0.8.11$ cd And gems is not installed. Help would be very greatly appriciated. Regards, Paul Thompson