1.安装mysql

sudo apt-get install mysql-server-5.6 mysql-client-5.6

2.修改mysql绑定的127.0.0.1信息

修改文件/etc/mysql/my.cnf

修改完重启

sudo service mysql stop
sudo service mysql start 

3.登录数据库确认是否正常

mysql -u root -p

4.创建数据库和用户

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

5.解压下载后的redmine文件

tar xzvf redmine-2.5.2.tar.gz
6.cp到/opt目录下

 sudo cp -Rf redmine-2.5.2 /opt/redmine-2.5.2

7.修改权限

sudo chown -Rf terry:terry redmine-2.5.2/
sudo chmod -Rf 775 redmine-2.5.2/

8.修改数据库连接文件

９．主目录（ｒｅｄｍｉｎｅ解压后根目录）执行ｔｏｋｅｎ信息

 rake generate_secret_token（此命令出现的问题见后面的问题处理）

１０．创建数据库结构

RAILS_ENV=production rake db:migrate

　此命令执行一路畅通

11.  初始化数据

RAILS_ENV=production rake redmine:load_default_data

　此命令执行一路畅通,同时运行的过程中选择语言，我输入的是ｚｈ

12.测试安装是否成功

ruby script/rails server webrick -e production

　测试通过

１３．登录系统

使用管理员admin/admin登录系统

以上安装方法参考官网资料进行安装，地址：http://www.redmine.org/projects/redmine/wiki/RedmineInstall

问题：

1.rake generate_secret_token
Could not find gem ‘rails (= 3.2.19) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：执行bundle install如还不行，则sudo apt-get install rails后解决 ,最终通过修改配置文件中的版本号解决

2.An error occurred while installing mysql2 (0.3.16), and Bundler cannot continue.
Make sure that `gem install mysql2 -v ‘0.3.16‘` succeeds before bundling.

解决:sudo gem install mysql2 -v ‘0.3.16‘，如果还不行，则

sudo apt-get install  libmysqlclient-dev,安装后再运行上边的命令

3.Could not find gem ‘selenium-webdriver (>= 0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install selenium-webdriver

４．Could not find gem ‘rack-openid (>= 0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.

解决:sudo gem install rack-openid

5.Could not find gem ‘fastercsv (~> 1.5.0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install fastercsv

６．Could not find gem ‘shoulda (~> 3.3.2) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.

解决: sudo gem install shoulda

7.Could not find gem ‘net-ldap (~> 0.3.1) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install net-ldap

8.Could not find gem ‘ruby-openid (~> 2.3.0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install ruby-openid
９．Could not find gem ‘mocha (~> 1.0.0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install mocha

１０．Could not find gem ‘rmagick (>= 2.0.0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install rmagick　

出现Can‘t install RMagick 2.13.2. Can‘t find Magick-config in /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/biｎ时

解决：sudo apt-get install imagemagick libmagickwand-dev

１１．Could not find gem ‘redcarpet (~> 2.3.0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.

解决： sudo gem install redcarpet　 -v 2.3.0

12.Could not find gem ‘capybara (~> 2.1.0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install capybara -v 2.1.0

１３．Could not find gem ‘yard (>= 0) ruby‘ in the gems available on this machine.
Run `bundle install` to install missing gems.
解决：sudo gem install yard 

１４．登录成功后报如下错误：

NoMethodError (undefined method `options‘ for {:user_id=>1, :ctime=>1406624849, :atime=>1406624849}:Hash):
  rack (1.5.2) lib/rack/session/abstract/id.rb:329:in `commit_session‘
  rack (1.5.2) lib/rack/session/abstract/id.rb:226:in `context‘
  rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call‘
  /usr/lib/ruby/vendor_ruby/action_dispatch/middleware/cookies.rb:341:in `call‘
  /usr/lib/ruby/vendor_ruby/active_record/query_cache.rb:64:in `call‘
  /usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call‘
  /usr/lib/ruby/vendor_ruby/action_dispatch/middleware/callbacks.rb:28:in `block in call‘
  /usr/lib/ruby/vendor_ruby/active_support/callbacks.rb:405:in `_run__226998513__call__336786722__callbacks‘
  /usr/lib/ruby/vendor_ruby/active_support/callbacks.rb:405:in `__run_callback‘
  /usr/lib/ruby/vendor_ruby/active_support/callbacks.rb:385:in `_run_call_callbacks‘
  /usr/lib/ruby/vendor_ruby/active_support/callbacks.rb:81:in `run_callbacks‘

解决方法：

sudo gem install rack -v 1.4.5

在根下增加Gemfile.local，内容为gem "rack", "1.4.5"，执行bundle update　．

版本1.5.2有bug，参见官方的ｂｕｇ：http://www.redmine.org/issues/14652#note-3