我是按照下面这个URL来轻快安装的。
http://lxiaodao.iteye.com/blog/1579992
(1)RVM官方网站应该是改版过一次，
使用
- curl -L https://get.rvm.io | bash -s stable
下载并安装rvm稳定版本。不在使用bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)，切记。
很快安装完rvm后，重新登录一个新的ssh，使用rvm -v检查一下版本即可。
(2)安装一些以来库，编译安装其它软件或者库的时候会用到
- yum install zlib zlib-devel sqlite-devel
最后的信息大致如下：
- ...... 30 kB/s | 124 kB 00:04
- Running rpm_check_debug
- Running Transaction Test
- Transaction Test Succeeded
- Running Transaction
- Installing : sqlite-devel-3.6.20-1.el6.i686 1/2
- Installing : zlib-devel-1.2.3-27.el6.i686 2/2
- Installed:
- sqlite-devel.i686 0:3.6.20-1.el6 zlib-devel.i686 0:1.2.3-27.el6
- Complete!
(3)强烈推荐安装ruby前，先安装openssl，否则以后要用到ssl的时候可能痛不欲生地要重新安装ruby。
- rvm pkg install openssl
安装完成后，有下面的提示信息，如果安装错误，也有提示告示你到哪里查看日志。
- [root@localhost config]# rvm pkg install openssl
- Fetching openssl-0.9.8t.tar.gz to /usr/local/rvm/archives
- Extracting openssl-0.9.8t.tar.gz to /usr/local/rvm/src
- Configuring openssl in /usr/local/rvm/src/openssl-0.9.8t.
- Compiling openssl in /usr/local/rvm/src/openssl-0.9.8t.
- Installing openssl to /usr/local/rvm/usr
不同的操作系统或者用户，安装位置可能不一样。
(4)指定openssl位置来安装ruby
提示有一些库可能需要安装，请根据实际情况决策是否需要yum install一些以来库。
- yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake libtool bison iconv-devel
可以先安装上面的一些库，再安装ruby
- rvm install 1.9.2 --with-openssl-dir=/usr/local/rvm/usr
我看完提示信息后，q推出提示，没有安装其它依赖库，继续安装ruby。
- ......
- Press 'q' to continue.
- Fetching yaml-0.1.4.tar.gz to /usr/local/rvm/archives
- % Total % Received % Xferd Average Speed Time Time Time Current
- Dload Upload Total Spent Left Speed
- 100 460k 100 460k 0 0 29602 0 0:00:15 0:00:15 --:--:-- 34256
- Extracting yaml-0.1.4.tar.gz to /usr/local/rvm/src
- Configuring yaml in /usr/local/rvm/src/yaml-0.1.4.
- Compiling yaml in /usr/local/rvm/src/yaml-0.1.4.
- Installing yaml to /usr/local/rvm/usr
- Installing Ruby from source to: /usr/local/rvm/rubies/ruby-1.9.2-p320, this may take a while depending on your cpu(s)...
- ruby-1.9.2-p320 - #fetching
- ruby-1.9.2-p320 - #downloading ruby-1.9.2-p320, this may take a while depending on your connection...
- % Total % Received % Xferd Average Speed Time Time Time Current
- Dload Upload Total Spent Left Speed
- 100 8770k 100 8770k 0 0 44230 0 0:03:23 0:03:23 --:--:-- 55436
- ruby-1.9.2-p320 - #extracting ruby-1.9.2-p320 to /usr/local/rvm/src/ruby-1.9.2-p320
- ruby-1.9.2-p320 - #extracted to /usr/local/rvm/src/ruby-1.9.2-p320
- ruby-1.9.2-p320 - #configuring
- ruby-1.9.2-p320 - #compiling
- ruby-1.9.2-p320 - #installing
- Retrieving rubygems-1.8.24
- % Total % Received % Xferd Average Speed Time Time Time Current
- Dload Upload Total Spent Left Speed
- 100 371k 100 371k 0 0 38121 0 0:00:09 0:00:09 --:--:-- 38064
- Extracting rubygems-1.8.24 ...
- Removing old Rubygems files...
- Installing rubygems-1.8.24 for ruby-1.9.2-p320 ...
- Installation of rubygems completed successfully.
- ruby-1.9.2-p320 - adjusting #shebangs for (gem irb erb ri rdoc testrb rake).
- ruby-1.9.2-p320 - #importing default gemsets (/usr/local/rvm/gemsets/)
- Install of ruby-1.9.2-p320 - #complete
(5) rvm use 1.9.2
(6) gem install rails
- Fetching: i18n-0.6.0.gem (100%)
- Fetching: multi_json-1.3.6.gem (100%)
- Fetching: activesupport-3.2.6.gem (100%)
- Fetching: builder-3.0.0.gem (100%)
- Fetching: activemodel-3.2.6.gem (100%)
- Fetching: rack-1.4.1.gem (100%)
- Fetching: rack-cache-1.2.gem (100%)
- Fetching: rack-test-0.6.1.gem (100%)
- Fetching: journey-1.0.4.gem (100%)
- Fetching: hike-1.2.1.gem (100%)
- Fetching: tilt-1.3.3.gem (100%)
- Fetching: sprockets-2.1.3.gem (100%)
- Fetching: erubis-2.7.0.gem (100%)
- Fetching: actionpack-3.2.6.gem (100%)
- Fetching: arel-3.0.2.gem (100%)
- Fetching: tzinfo-0.3.33.gem (100%)
- Fetching: activerecord-3.2.6.gem (100%)
- Fetching: activeresource-3.2.6.gem (100%)
- Fetching: mime-types-1.19.gem (100%)
- Fetching: polyglot-0.3.3.gem (100%)
- Fetching: treetop-1.4.10.gem (100%)
- Fetching: mail-2.4.4.gem (100%)
- Fetching: actionmailer-3.2.6.gem (100%)
- Fetching: rack-ssl-1.3.2.gem (100%)
- Fetching: thor-0.15.4.gem (100%)
- Fetching: json-1.7.3.gem (100%)
- Building native extensions. This could take a while...
- Fetching: rdoc-3.12.gem (100%)
- ......