Debian下Ruby、Rails、Passenger安装
1、安装ruby$ sudo aptitude install ruby ruby-dev ri rdoc irb libopenssl-ruby
如果使用sqlite3还要安装
$ sudo aptitude install sqlite3 libsqlite3-ruby libsqlite-dev libsqlite3-dev
使用mysql需要安装
$ sudo aptitude install libmysql-ruby
2、安装gem
$ sudo aptitude install rubygems
编辑~/.bashrc
$ vi ~/.bashrc
在最后添加
export PATH="$PATH":/var/lib/gems/1.8/bin
使变更立即生效
$ source ~/.bashrc
3、安装rails
$ sudo gem install rails
4、安装passenger
$ sudo gem install passenger$ sudo /var/lib/gems/1.8/bin/passenger-install-apache2-module
passenger的安装非常体贴，安装前会有检查，如果系统不符合要求会给出详细的解决方法（真希望所有的linux软件都能做成这样）。
下边是我的检查结果：
Checking for required software...* GNU C compiler... found at /usr/bin/g* Ruby development headers... found* OpenSSL support for Ruby... found* RubyGems... found* Rake... found at /var/lib/gems/1.9.0/bin/rake* Apache 2... found at /usr/sbin/apache2* Apache 2 development headers... not found* Apache Portable Runtime (APR) development headers... not found* Apache Portable Runtime Utility (APU) development headers... not found
下面是根据passenger提供的说明进行的操作（仅供参考）：
$ sudo apt-get install apache2-prefork-dev libapr1-dev libaprutil1-dev
再次运行上边的passenger-install-apache2-module，安装成功后pessenger提供进一步配置说明：
Please edit your Apache configuration file, and add these lines:LoadModule passenger_module /var/lib/gems/1.8/gems/passenger-2.2.4/ext/apache2/mod_passenger.soPassengerRoot /var/lib/gems/1.8/gems/passenger-2.2.4PassengerRuby /usr/bin/ruby1.8...Suppose you have a Ruby on Rails application in /somewhere. Add a virtual hostto your Apache configuration file, and set its DocumentRoot to/somewhere/public, like this:<VirtualHost *:80>ServerName www.yourhost.comDocumentRoot /somewhere/public # <-- be sure to point to 'public'!</VirtualHost>
5、根据上边的说明更改apache的rails mod的配置
修改rails.load
$ sudo vi /etc/apache2/mods-available/rails.load
添加如下内容（仅供参考）
LoadModule passenger_module /var/lib/gems/1.8/gems/passenger-2.2.4/ext/apache2/mod_passenger.so
修改rails.conf
$ sudo vi /etc/apache2/mods-available/rails.conf
添加如下内容（仅供参考）
PassengerRoot /var/lib/gems/1.8/gems/passenger-2.2.4PassengerRuby /usr/bin/ruby1.8
6、配置虚拟主机
$ sudo vi /etc/apache2/sites-available/yoursite
<VirtualHost *:80> ServerName www.yourhost.com DocumentRoot /somewhere/public ...
7、使对apache的更改生效
启用模块
$ sudo a2enmod rails
启用vhost
$ sudo a2ensite yoursite
重启apache
$ sudo /etc/init.d/apache2 restart
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