我正在 Coursera 上學習 Web 應用程式開發課程，需要安裝 Ruby 和 Rails。我正在按照以下說明進行操作https://class.coursera.org/webapplications-002/forum/thread?thread_id=51
當我運行命令時sudo curl -L https://get.rvm.io | bash -s stable --ruby，我收到以下錯誤回應：
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 184 100 184 0 0 988 0 --:--:-- --:--:-- --:--:-- 1383
100 20758 100 20758 0 0 35274 0 --:--:-- --:--:-- --:--:-- 35274
Downloading https://github.com/wayneeseguin/rvm/archive/stable.tar.gz
curl: (77) error setting certificate verify locations:
CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
It looks like you have old certificates, you can read more about it here:
https://rvm.io/support/fixing-broken-ssl-certificates/
Downloading https://bitbucket.org/mpapis/rvm/get/stable.tar.gz
curl: (77) error setting certificate verify locations:
CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
It looks like you have old certificates, you can read more about it here:
https://rvm.io/support/fixing-broken-ssl-certificates/
谷歌搜尋這個錯誤，似乎這是 12.04 特有的。我還沒找到解決方法。有什麼建議如何繼續嗎？從我正在 Coursera 上學習入門課程這一事實可以看出，我對 Web 伺服器應用程式完全陌生。
先致謝！