尝试升级到 ruby 2.0.0(然后还有 rails 4.0.0)
首先尝试做rvm get stable
但不断收到错误代码22,即
Downloading RVM from wayneeseguin branch stable
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 124 100 124 0 0 56 0 0:00:02 0:00:02 --:--:-- 58
0 124 0 0 0 0 0 0 --:--:-- 0:00:02 --:--:-- -1610
curl: (22) The requested URL returned error: 503
Could not download 'https://github.com/wayneeseguin/rvm/archive/stable.tar.gz'.
curl returned status '22'.