Possible bug installing mephisto

Virtualmin
1

I tried to install mephisto today from the install scripts module and got the error below. We already have mongrel on the server so I was surprised to see it tried to install it.

Mongrel GEM install failed :
Need to update 4 gems from http://gems.rubyforge.org
…
complete
Select which gem to install for your platform (i386-linux)

  1. mongrel 1.0.1 (mswin32)
  2. mongrel 1.0.1 (ruby)
  3. mongrel 1.0 (mswin32)
  4. mongrel 1.0 (ruby)
  5. Skip this gem
  6. Cancel installation
    > 2
    Building native extensions. This could take a while…
    Successfully installed mongrel-1.0.1
    /usr/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in gem_original_require': no such file to load -- rdoc/rdoc (LoadError) from /usr/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in require’
    from /usr/lib/site_ruby/1.8/rubygems/doc_manager.rb:71:in load_rdoc' from /usr/lib/site_ruby/1.8/rubygems/doc_manager.rb:41:in generate_ri’
    from /usr/lib/site_ruby/1.8/rubygems/commands/install_command.rb:112:in execute' from /usr/lib/site_ruby/1.8/rubygems/commands/install_command.rb:111:in each’
    from /usr/lib/site_ruby/1.8/rubygems/commands/install_command.rb:111:in execute' from /usr/lib/site_ruby/1.8/rubygems/commands/install_command.rb:49:in each’
    from /usr/lib/site_ruby/1.8/rubygems/commands/install_command.rb:49:in execute' from /usr/lib/site_ruby/1.8/rubygems/command.rb:70:in invoke’
    from /usr/lib/site_ruby/1.8/rubygems/command_manager.rb:120:in process_args' from /usr/lib/site_ruby/1.8/rubygems/command_manager.rb:91:in run’
    from /usr/lib/site_ruby/1.8/rubygems/gem_runner.rb:30:in `run’
    from /usr/bin/gem:23