替换RubyGems 镜像
更换gem的源： [root@tvm-rpm ~]# gem sources --remove http://rubygems.org/ [root@tvm-rpm ~]# gem sources -a http://mirrors.aliyun.com/rubygems/ [root@tvm-rpm ~]# gem sources -a https://ruby.taobao.org/ [root@tvm-rpm ~]# gem sources -l *** CURRENT SOURCES *** http://mirrors.aliyun.com/rubygems/ https://ruby.taobao.org/ 参考： https://ruby.taobao.org/ http://theo.im/blog/2014/05/20/use-aliyun-mirror-to-boost-up-download-speed/
