$ sudo rm -rf /var/www/html/projects

$ sudo /usr/local/bin/gem uninstall passenger
Remove executables:
    passenger, passenger-install-apache2-module, passenger-install-nginx-module, passenger-config, passenger-status, passenger-memory-stats, passenger-make-enterprisey

in addition to the gem? [Yn]  Y
Removing passenger
Removing passenger-install-apache2-module
Removing passenger-install-nginx-module
Removing passenger-config
Removing passenger-status
Removing passenger-memory-stats
Removing passenger-make-enterprisey
Successfully uninstalled passenger-3.0.12

$ sudo rm /etc/httpd/conf.d/passenger.conf
$ sudo apachectl configtest
Syntax OK
$ sudo service httpd restart
httpd を停止中:                                            [  OK  ]
httpd を起動中:                                            [  OK  ]

$ sudo /usr/local/bin/gem uni $(gem li --no-versions)

Select gem to uninstall:
 1. actionmailer-2.3.14
 2. actionmailer-3.2.3
 3. actionmailer-3.2.5
 4. actionmailer-3.2.8
 5. actionmailer-3.2.9
 6. actionmailer-3.2.13
 7. All versions
> 7

$ sudo /usr/local/bin/gem uni $(gem li --no-versions)
ERROR:  While executing gem ... (Gem::CommandLineError)
    Please specify at least one gem name (e.g. gem build GEMNAME)

$ rpm -qa | grep ruby
ruby-1.9.3-p194-1.x86_64

$ sudo rpm -e ruby-1.9.3-p194-1.x86_64

$ sudo yum install gcc gcc-c++ make git openssl-devel readline-devel zlib-devel
$ sudo yum install libcurl-devel ImageMagick ImageMagick-devel ipa-gothic-fonts
$ sudo yum install ipa-mincho-fonts ipa-pgothic-fonts.noarch ipa-pmincho-fonts.noarch

$ sudo visudo -f /etc/sudoers.d/00_base

Defaults !secure_path
Defaults env_keep += "PATH RBENV_ROOT"

$ export RBENV_ROOT=/usr/local/rbenv
$ export PATH=${RBENV_ROOT}/bin:${PATH}

$ sudo git clone https://github.com/sstephenson/rbenv.git ${RBENV_ROOT}
$ sudo git clone https://github.com/sstephenson/ruby-build.git ${RBENV_ROOT}/plugins/ruby-build

$ sudo rbenv init -
export PATH="/usr/local/rbenv/shims:${PATH}"
export RBENV_SHELL=sudo
rbenv rehash 2>/dev/null
rbenv() {
  local command
  command="$1"
  if [ "$#" -gt 0 ]; then
    shift
  fi

  case "$command" in
  rehash|shell)
    eval "`rbenv "sh-$command" "$@"`";;
  *)
    command rbenv "$command" "$@";;
  esac
}

$ vi .bash_profile

export RBENV_ROOT="/usr/local/rbenv"
export PATH="${RBENV_ROOT}/bin:${PATH}"
eval "$(rbenv init -)"

$ source ~/.bash_profile

$ rbenv
rbenv 0.4.0-89-g14bc162
Usage: rbenv <command> [<args>]

Some useful rbenv commands are:
   commands    List all available rbenv commands
   local       Set or show the local application-specific Ruby version
   global      Set or show the global Ruby version
   shell       Set or show the shell-specific Ruby version
   install     Install a Ruby version using ruby-build
   uninstall   Uninstall a specific Ruby version
   rehash      Rehash rbenv shims (run this after installing executables)
   version     Show the current Ruby version and its origin
   versions    List all Ruby versions available to rbenv
   which       Display the full path to an executable
   whence      List all Ruby versions that contain the given executable

See `rbenv help <command>' for information on a specific command.
For full documentation, see: https://github.com/sstephenson/rbenv#readme

$ rbenv install -l
Available versions:
  1.8.6-p383
  1.8.6-p420

... 以下、略

$ sudo rbenv install 2.1.0
Downloading ruby-2.1.0.tar.gz...
-> http://dqw8nmjcqpjn7.cloudfront.net/9e6386d53f5200a3e7069107405b93f7
Installing ruby-2.1.0...
Installed ruby-2.1.0 to /usr/local/rbenv/versions/2.1.0

$ sudo rbenv global 2.1.0
$ sudo rbenv rehash

$ ruby --version
ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-linux]

$ sudo gem install bundler --no-rdoc --no-ri
Fetching: bundler-1.5.3.gem (100%)
Successfully installed bundler-1.5.3
1 gem installed

$ sudo gem install passenger --no-rdoc --no-ri
Fetching: daemon_controller-1.1.8.gem (100%)
Successfully installed daemon_controller-1.1.8
Fetching: rack-1.5.2.gem (100%)
Successfully installed rack-1.5.2
Fetching: passenger-4.0.37.gem (100%)
Building native extensions.  This could take a while...
Successfully installed passenger-4.0.37
3 gems installed

$ sudo rbenv rehash

$ sudo passenger-install-apache2-module

...中略

--------------------------------------------
Almost there!

Please edit your Apache configuration file, and add these lines:

   LoadModule passenger_module /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/passenger-4.0.37/buildout/apache2/mod_passenger.so
   <IfModule mod_passenger.c>
     PassengerRoot /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/passenger-4.0.37
     PassengerDefaultRuby /usr/local/rbenv/versions/2.1.0/bin/ruby
   </IfModule>

After you restart Apache, you are ready to deploy any number of web
applications on Apache, with a minimum amount of configuration!

Press ENTER to continue.

--------------------------------------------

Deploying a web application: an example

Suppose you have a web application in /somewhere. Add a virtual host to your
Apache configuration file and set its DocumentRoot to /somewhere/public:

   <VirtualHost *:80>
      ServerName www.yourhost.com
      # !!! Be sure to point DocumentRoot to 'public'!
      DocumentRoot /somewhere/public
      <Directory /somewhere/public>
         # This relaxes Apache security settings.
         AllowOverride all
         # MultiViews must be turned off.
         Options -MultiViews
      </Directory>
   </VirtualHost>

And that's it! You may also want to check the Users Guide for security and
optimization tips, troubleshooting and other useful information:

  /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/passenger-4.0.37/doc/Users guide Apache.html
  http://www.modrails.com/documentation/Users%20guide%20Apache.html

Enjoy Phusion Passenger, a product of Phusion (www.phusion.nl) :-)
https://www.phusionpassenger.com

Phusion Passenger is a trademark of Hongli Lai & Ninh Bui.

$ sudo vi /etc/httpd/conf.d/passenger.conf

LoadModule passenger_module /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/passenger-4.0.37/buildout/apache2/mod_passenger.so
   <IfModule mod_passenger.c>
     PassengerRoot /usr/local/rbenv/versions/2.1.0/lib/ruby/gems/2.1.0/gems/passenger-4.0.37
     PassengerDefaultRuby /usr/local/rbenv/versions/2.1.0/bin/ruby
   </IfModule>

RailsBaseURI /projects

$ sudo apachectl configtest
Syntax OK
$ sudo service httpd restart
httpd を停止中:                                            [  OK  ]
httpd を起動中:                                            [  OK  ]

$ cd
$ wget http://www.redmine.org/releases/redmine-2.4.3.tar.gz
$ tar zxvf redmine-2.4.3.tar.gz
$ sudo mv redmine-2.4.3 /var/lib/redmine-new
$ rm -rf redmine-2.4.3.tar.gz

$ cd /var/lib
$ cp redmine/config/database.yml redmine-new/config/database.yml
$ cp -r redmine/config/email.yml redmine-new/config/email.yml
$ cp -r redmine/files/ redmine-new/

$ cd /var/lib
$ sudo mv redmine redmine-old
$ sudo mv redmine-new redmine

$ cd /var/lib/redmine/public
$ mkdir plugin_assets

$ cd /var/lib/redmine
$ bundle install --without development test postgresql sqlite
Your Gemfile lists the gem activerecord-jdbcmysql-adapter (>= 0) more than once.
You should probably keep only one of them.
While it's not a problem now, it could cause errors if you change the version of just one of them later.

Fetching gem metadata from https://rubygems.org/.........
Fetching additional metadata from https://rubygems.org/..
Resolving dependencies...
Installing rake (10.1.1)
Installing i18n (0.6.9)
Installing multi_json (1.8.4)
Installing activesupport (3.2.16)
Installing builder (3.0.0)
Installing activemodel (3.2.16)
Installing erubis (2.7.0)
Installing journey (1.0.4)
Installing rack (1.4.5)
Installing rack-cache (1.2)
Installing rack-test (0.6.2)
Installing hike (1.2.3)
Installing tilt (1.4.1)
Installing sprockets (2.2.2)
Installing actionpack (3.2.16)
Installing mime-types (1.25.1)
Installing polyglot (0.3.3)
Installing treetop (1.4.15)
Installing mail (2.5.4)
Installing actionmailer (3.2.16)
Installing arel (3.0.3)
Installing tzinfo (0.3.38)
Installing activerecord (3.2.16)
Installing activeresource (3.2.16)
Using bundler (1.5.3)
Installing coderay (1.1.0)
Installing rack-ssl (1.3.3)
Using json (1.8.1)
Installing rdoc (3.12.2)
Installing thor (0.18.1)
Installing railties (3.2.16)
Installing jquery-rails (2.0.3)
Installing mysql (2.8.1)
Installing mysql2 (0.3.15)
Installing net-ldap (0.3.1)
Installing pg (0.17.1)
Installing ruby-openid (2.3.0)
Installing rack-openid (1.4.2)
Installing rails (3.2.16)
Installing rmagick (2.13.2)
Installing sqlite3 (1.3.8)
Your bundle is complete!
Gems in the groups development, test, postgresql and sqlite were not installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
Post-install message from rdoc:
Depending on your version of ruby, you may need to install ruby rdoc/ri data:

<= 1.8.6 : unsupported
 = 1.8.7 : gem install rdoc-data; rdoc-data --install
 = 1.9.1 : gem install rdoc-data; rdoc-data --install
>= 1.9.2 : nothing to do! Yay!

$ cd /var/lib/redmine
$ rake generate_secret_token
$ rake db:migrate RAILS_ENV="production"
$ rake db:migrate:upgrade_plugin_migrations RAILS_ENV=production
$ rake db:migrate_plugins RAILS_ENV=production
$ rake tmp:cache:clear
$ rake tmp:sessions:clear

$ sudo ln -s /var/lib/redmine/public /var/www/html/projects