Can't find RubyGem rubygems

gistfile1.txt

[root@centosdev gems]# irb
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> require 'gpfsquotad'
Gem::LoadError: Could not find RubyGem rubygems (>= 0)

  from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:779:in `report_activate_error'
	from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:214:in `activate'
	from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:249:in `activate'
	from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:248:in `each'
	from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:248:in `activate'
	from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:35:in `require'
	from (irb):2
	from :0