官方安装文档参考： http://www.redmine.org/projects/redmine/wiki/RedmineInstall 首先安装MySQL, 参考： http://blog.csdn.net/csfreebird/article/details/6928733 创建Redmin数据库和用户 mysql -u root -p CREATE DATABASE redmine CHARACTER SET utf8

官方安装文档参考：

http://www.redmine.org/projects/redmine/wiki/RedmineInstall

首先安装MySQL, 参考：

http://blog.csdn.net/csfreebird/article/details/6928733

创建Redmin数据库和用户

mysql -u root -p

CREATE DATABASE redmine CHARACTER SET utf8;
CREATE USER 'redmine'@'localhost' IDENTIFIED BY 'my_password';
GRANT ALL PRIVILEGES ON redmine.* TO 'redmine'@'localhost';

现在下载Redmine 2.4.2代码：

wget http://www.redmine.org/releases/redmine-2.4.2.tar.gz
tar zxvf redmine-2.4.2.tar.gz

apt-get install ruby1.9.3 

cd config
cp database.yml.example database.yml

编辑database.yml

production:
 adapter: mysql2
 database: redmine
 host: localhost
 username: redmine
 password: "your_pwd"
 encoding: utf8

root@test:/usr/src/redmine-2.4.2# gem install bundler
Fetching: bundler-1.5.2.gem (100%)
Successfully installed bundler-1.5.2
1 gem installed
Installing ri documentation for bundler-1.5.2...
Installing RDoc documentation for bundler-1.5.2...

现在安装redmine依赖项

bundle install --without development test

An error occurred while installing mysql2 (0.3.14), and Bundler cannot continue. 
Make sure that `gem install mysql2 -v '0.3.14'` succeeds before bundling.

apt-get install mysql-client
apt-get install libmysqlclient-dev

gem install mysql2 -v '0.3.14'

bundle install --without development test

An error occurred while installing rmagick (2.13.2), and Bundler cannot continue. 
Make sure that `gem install rmagick -v '2.13.2'` succeeds before bundling.

apt-get install libmagickcore-dev libmagickwand-dev

rake generate_secret_token
RAILS_ENV=production rake db:migrate
RAILS_ENV=production rake redmine:load_default_data
mkdir -p tmp tmp/pdf public/plugin_assets
chown -R 777 files log tmp public/plugin_assets
chmod -R 755 files log tmp public/plugin_assets

root@test:/usr/src/redmine-2.4.2# ruby script/rails server webrick -e production
=> Booting WEBrick
=> Rails 3.2.16 application starting in production on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2014-01-11 18:49:18] INFO WEBrick 1.3.1
[2014-01-11 18:49:18] INFO ruby 1.9.3 (2011-10-30) [x86_-linux]
[2014-01-11 18:49:18] INFO WEBrick::HTTPServer#start: pid=10173 port=3000
Started GET "/" for 119.80.97.56 at 2014-01-11 18:49:35 +0800
Processing by WelcomeController#index as HTML
 Current user: anonymous
 Rendered welcome/index.html.erb within layouts/base (36.7ms)
Completed 200 OK in 437.0ms (Views: 145.0ms | ActiveRecord: 16.7ms)

admin=admin