亲测有用!!!
sudo vim /etc/hosts
199.232.28.133 raw.githubusercontent.com
贴在最后一行
WQ
保存退出
然后依次执行:
$ gpg --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
$ command curl -sSL https://rvm.io/mpapis.asc | gpg --import -
$ command curl -sSL https://rvm.io/pkuczynski.asc | gpg --import -
$ curl -L get.rvm.io | bash -s stable