gem install omnibus
可能需要配置gem source ,通过 gem source list
可以进行检查
参考如下:
gem source -r https://rubygems.org/
gem source -a https://gems.ruby-china.com/
https://github.com/chef/omnibus
原文:https://www.cnblogs.com/rongfengliang/p/11104705.html