在 Ubuntu 12.04 上安装 RVM 和 Ruby

前言

使用RVM来管理Ruby，建议使用同样的 Ubuntu 版本，以免遇到一些版本不同带来的问题。

参考

http://ruby-china.org/wiki/install-rails-on-ubuntu-12-04-server

配置 Ubuntu 系统

如果你是国内服务器，推荐修改网易的源

1. 输入 sudo vi /etc/apt/sources.list 将里面的内容替换成：

   deb http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse
   deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse
   deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse

2. 然后更新一下:

   sudo apt-get update

3. 安装必要的三方库

    sudo apt-get install -y wget vim build-essential openssl libreadline6 libreadline6-dev libmysqlclient-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libxml2-dev libxslt-dev libcurl4-openssl-dev autoconf automake libtool imagemagick libmagickwand-dev libpcre3-dev nodejs libpq-dev

安装 Ruby

安装 RVM

$ curl -L https://get.rvm.io | bash -s stable
$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"' >>~/.bashrc
$ source ~/.bashrc
$ rvm -v

安装 Ruby

如果你是国内服务器，推荐将 RVM 的安装源替换成 Taobao 的镜像服务器，这样安装能更快！

 sed -i -e 's/ftp.ruby-lang.org/pub/ruby/ruby.taobao.org/mirrors/ruby/g' ~/.rvm/config/db

用 RVM 安装 Ruby:

$ rvm pkg install readline openssl
$ rvm install 2.0.0
$ rvm use 2.0.0 --default
$ ruby -v
ruby 2.0.0p247

国内服务器推荐替换 RubyGems 的到淘宝镜像:

$ gem sources --remove https://rubygems.org/
$ gem sources -a http://ruby.taobao.org/
$ gem sources -l
*** CURRENT SOURCES ***

http://ruby.taobao.org