[Rails] custom_require.rb

I've been tryng to duplicate an ancient Ruby 1.86 Rails 2.3.2 app on a brand new Linux box (over from a windows box) and have, under rpm, recreated all the gems with their corret versions.

However, when I go to invoke

ruby script/server

I am getting:

=> Booting Mongrel
=> Rails 2.3.2 application starting on http://0.0.0.0:3000
/home/user/.rvm/gems/ruby-1.8.6-p420/gems/rails-2.3.2/lib/rails/gem_dependency.rb:99:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010.  Use #requirement
/home/user/.rvm/rubies/ruby-1.8.6-p420/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- ruby-debug (MissingSourceFile)
    from /home/user/.rvm/rubies/ruby-1.8.6-p420/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:521:in `new_constants_in'
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:156:in `require'
    from /home/user/ggrip/ggripv2/config/environments/development.rb:2:in `load_environment'
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/rails-2.3.2/lib/initializer.rb:365:in `load_environment'
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/activesupport-2.3.2/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings'
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/rails-2.3.2/lib/initializer.rb:358:in `load_environment'
     ... 9 levels...
    from /home/user/.rvm/gems/ruby-1.8.6-p420/gems/rails-2.3.2/lib/commands/server.rb:84
    from /home/user/.rvm/rubies/ruby-1.8.6-p420/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /home/user/.rvm/rubies/ruby-1.8.6-p420/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from script/server:3

I'm at a loss here as to what to change to get this thing to fire up -- Im just not sure what it is telling me needs to be changed in my custom_require.rb, below, in order to start. Can someone please orient me here what I need to do? Thanks, RVic

#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++

require 'rubygems'

module Kernel

  ##
  # The Kernel#require from before RubyGems was loaded.

  alias gem_original_require require

  ##
  # When RubyGems is required, Kernel#require is replaced with our own which
  # is capable of loading gems on demand.
  #
  # When you call <tt>require 'x'</tt>, this is what happens:
  # * If the file can be loaded from the existing Ruby loadpath, it
  #   is.
  # * Otherwise, installed gems are searched for a file that matches.
  #   If it's found in gem 'y', that gem is activated (added to the
  #   loadpath).
  #
  # The normal <tt>require</tt> functionality of returning false if
  # that file has already been loaded is preserved.

  def require(path) # :doc:
    gem_original_require path
  rescue LoadError => load_error
    if load_error.message =~ /#{Regexp.escape path}\z/ and
       spec = Gem.searcher.find(path) then
      Gem.activate(spec.name, "= #{spec.version}")
      gem_original_require path
    else
      raise load_error
    end
  end

  private :require
  private :gem_original_require

end

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