sudo apt-get install ruby1.9.1-full@H_301_3@ 
 
然后下载rubygem 1.3.7的源码并进行安装
 
  
 
sudo ruby setup.rb@H_301_3@ 
 
那么,例如,安装sinatra
 
  
 
sudo gem install sinatra@H_301_3@ 
 
最后打开irb和类型
 
  
 
require "rubygems"
require "sinatra"@H_301_3@ 
 
并得到错误
 
  
 
LoadError: no such file to load -- sinatra
    from (irb):2:in `require'
    from (irb):2
    from /usr/bin/irb:12:in `<main>'@H_301_3@