yum -y install libyaml-devel zlib-devel curl-devel openssl-devel httpd-devel apr-devel apr-util-devel gcc ruby-devel gcc-c++ make postgresql-devel ImageMagick-devel sqlite-devel perl-LDAP mod_perl perl-Digest-SHA

mysql> create user 'redmine'@'localhost' identified by 'redmine';

Query OK,  rows affected (0.00 sec)

mysql> create database redmine character set utf8;

Query OK,  row affected (0.00 sec)

mysql> grant all privileges on redmine.* to 'redmine'@'localhost';

Query OK,  rows affected (0.00 sec)

mysql> flush privileges;

Query OK,  rows affected (0.00 sec)

/sbin/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport  -j ACCEPT 

/sbin/iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport  -j ACCEPT

yum -y install php php-mysql php-gd php-imap php-ldap php-mbstring php-odbc php-pear php-xml php-xmlrpc php-pecl-apc php-soap

\curl -L https://get.rvm.io | bash

source /etc/profile.d/rvm.sh

查看已知的ruby版本 
rvm list known

我安装的是2.1版本，可根据实际需求版本修改
rvm install 2.1

[root@collin ~]# ruby -v
ruby 2.1.10p492 (2016-04-01 revision 54464) [x86_64-linux]

[root@collin ~]# rvm -v
rvm 1.29.1 (master) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io/]

gem install rails

安装报错：版本不对

activesupport requires Ruby version >= 2.2.2.

**********************************
指定版本安装
gem install rails -v 版本号

gem uninstall rails -v 版本号

rails所有版本号

https://rubygems.org/gems/rails/versions/

**********************************

版本地址：http://www.redmine.org/releases/

wget http://www.redmine.org/releases/redmine-3.2.0.tar.gz

tar zxvf redmine-2.6..tar.gz

cd redmine-2.6.

gem install bundler

bundle install --without development test rmagick（好多教程说要*,我貌似没有*也成功了。）

gem install mysql2

cd config

cp config/database.yml.example  config/database.yml 

vim database.yml

修改下面相应的部分

production:
adapter: mysql2
database: redmine
host: 192.168.1.110
username: redmine
password: redmine
encoding: utf8

如果没有安装先安装
#gem install rake

#rake generate_secret_token

报错：

　　　　Could not find gem 'mysql2 (~> 0.3.11)' in any of the gem sources listed in your Gemfile.
　　　　Run `bundle install` to install missing gems.

根据提示安装
gem install mysql2 -v '0.3.11'

再执行

#rake generate_secret_token

可以会报一系列的错误 类似

Could not find gem 'simplecov (~> 0.9.1)' in any of the gem sources listed in your Gemfile.
Run `bundle install` to install missing gems.

执行这句就可修复上面的错误。

#bundle install

#RAILS_ENV=production rake db:migrate

报错：Mysql2::Error: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)......

　First, go to database.yml

Change host: localhost to host: 127.0.0.1

That's it!

重新执行

#RAILS_ENV=production rake db:migrate

#RAILS_ENV=production rake redmine:load_default_data

Select language: ar, az, bg, bs, ca, cs, da, de, el, en, en-GB, es, es-PA, et, eu, fa, fi, fr, gl, he, hr, hu, id, it, ja, ko, lt, lv, mk, mn, nl, no, pl, pt, pt-BR, ro, ru, sk, sl, sq, sr, sr-YU, sv, th, tr, uk, vi, zh, zh-TW [en]

手动输入zh

rails server webrick -e production

后台运行

rails server webrick -e production -d

启动Ok！用户名密码是 admin/admin

我的还是出问题了，本机可以访问远程死活访问不了。
加上-b 0.0.0.0  
#rails server webrick -b 0.0.0.0 -e production
局域网电脑登录成功。

走了