Redmine is a flexible project management web application. Written using the Ruby on Rails framework, it is cross-platform and cross-database.
OS: CentOS 6.2

  • Install packages 
    yum install ruby-devel gcc-c++ openssl-devel httpd httpd-devel mysql-server  mysql-devel make ruby-rdoc libcurl-devel rubygem-rake ImageMagick ImageMagick-devel wget
  • Rubygems 
    cd /tmp
wget http://production.cf.rubygems.org/rubygems/rubygems-1.8.24.tgz
tar xvfz rubygems-1.8.24.tgz
cd rubygems-1.8.24
ruby setup.rb
  • Passenger 
    gem install passenger
passenger-install-apache2-module