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
yum install mysql-devel
安装rvm
curl -L get.rvm.io | bash -s stable
source /etc/profile.d/rvm.sh
rvm -v
sed -i -e 's/ftp\.ruby-lang\.org\/pub\/ruby/ruby\.taobao\.org\/mirrors\/ruby/g' /usr/local/rvm/config/db
rvm list known #查看有哪些东东
rvm install 2.0.0
rvm 2.0.0 --default
ruby -v
gem -v
设置gem源：
gem source -r https://rubygems.org/
gem source -a http://ruby.taobao.org
如果gem无法添加，可以修改vi /etc/resolv.conf
只保留nameserver 114.114.114.114，然后再次添加试试
gem install rails -v=2.3.5
rails -v
create database redmine character set utf8;
redmine2.5.1解压到/usr/local下
cd /usr/local/redmine
cd config
cp出来一个database.yml，然后修改production中的内容，参考下面的
production:
adapter: mysql2
database: redmine
host: localhost
username: root
password: 123123
cd /usr/local/redmine
gem install bundler
bundle install --without development test rmagick or bundle install --without development test
（如果重新修改了database.yml则需要重新运行上面的命令哦）
rake generate_secret_token
RAILS_ENV=production rake db:migrate
RAILS_ENV=production rake redmine:load_default_data
选择zh
#ruby script/rails server webrick -e production
#ruby /usr/local/redmine/script/rails server webrick -e production –d #以服务形式启动
gem install mongrel --pre
vi Gemfile
加入gem 'mongrel','~> 1.2.0.pre2'
ruby /usr/local/redmine/script/rails server mongrel -e production -d #此方式运行快
登录：
admin
admin
设置redmine自启动：
which ruby#查看ruby的路径
vi /etc/rc.local
添加如下内容：
echo "start redmine："
/usr/local/rvm/rubies/ruby-2.0.0-p451/bin/ruby /usr/local/redmine/script/rails server mongrel -e production –d
sh /etc/rc.local
原因：redhat防火墙屏蔽了端口3000
解决办法： 配置防火墙，开放宽口3000
# /sbin/iptables -I INPUT -p tcp --dport 3000 -j ACCEPT
# /etc/rc.d/init.d/iptables save
# service iptables restart
配置发mail：
vi configuration.yml
production:
email_delivery:
delivery_method: :smtp
smtp_settings:
address: "smtp.126.com"
port: 25
authentication: :login
domain: '126.com'
user_name: 'xxx'
password: 'xxx'
PS：如果要修改系统自带的字段（bug的），可对redmine/app/views/issues/_attributes.html.erb
样式和js是redmine-3.3.2/public下stylesheets和javascripts中的application.css
