yum install gcc-c++ patch readline readline-devel zlib zlib-devel
yum install libyaml-devel libffi-devel openssl-devel make
yum install bzip2 autoconf automake libtool bison iconv-devel
rvm 安装要用普通用户.
然后切换taobao 源头.
>rvm gemset create
>rvm use 2.2.2
解决 Gemset '' does not exist, 'rvm ruby-2.2.2 do rvm gemset create ' first, or append '--create'.
>rvm --create ruby-2.2.2
>rvm 2.2.2 --default
gem install execjs
gem install therubyracer
sudo apt-get install nodejs
RVM and Gemsets 使用.
http://blog.eddie.com.tw/2011/04/08/rvm-and-gemsets/
bash 添加rvm default 版本问题:
http://segmentfault.com/q/1010000000712443
taobao ruby 安装
http://ruby.taobao.org/
rvm ruby 安装 注意别用root
https://ruby-china.org/wiki/rvm-guide
http://segmentfault.com/a/1190000002922180
一般安装rvm&ruby:
http://www.jianshu.com/p/70d674bffd12
http://stackoverflow.com/questions/15848635/rvm-not-recognizing-gemset