Install Rails 3.2 using rvm on redhat

Upgrade Packages

yum update

Installing Recommended Packages

yum install gcc-c++ patch readline readline-devel zlib zlib-devel 
yum install libyaml-devel libffi-devel openssl-devel make 
yum install bzip2 autoconf automake libtool bison iconv-devel

Install RVM ( Ruby Version Manager )

$ curl -L | bash -s stable

Install Required Ruby Version

$ rvm install 1.9.3

Install rails

$ gem install rails --version '3.2.19'

Install Rails 3.2 with Ruby 1.9.3 using rvm in Ubuntu 14.0.1

Check ruby is already installed in your system or not

$ ruby -v 

Install curl if not installed

$ sudo apt-get install curl

Check curl version by

$ curl --version

Install RVM

Execute the command in the terminal

$ curl -L | bash -s stable

If the installation is done, close the terminal window and open it again to load the rvm into the shell

Check rvm version

$ rvm -v

rvm 1.25.30 (stable) by Wayne E. Seguin , Michal Papis  []

List rvm known rubies

$ rvm list known

Use rvm to install ruby 1.9.3

$ rvm install 1.9.3

Check the ruby versions available

$ rvm list rubies

Check the ruby version by

$ ruby -v

If this again shows the message to install ruby, then set this ruby version as default

$ rvm use ruby-1.9.3-p547 --default

then check ruby -v

Make gem package up to date

$ gem update

Install Rails 3.2.19

$ gem install rails --version '3.2.19'

Check rails version

$ rails -v 

You are ready to go!

Install Rails 4.0 with Ruby 2.0

Get the stable version of rvm:

$ rvm get stable

Install Ruby 2.0

$ rvm install ruby-2.0.0

Create a Gemset;

$ rvm gemset create rails-4.0

Goto that gemset:

$ rvm use ruby-2.0.0-p247@rails-4.0

Install Rails 4.0

$ gem install rails --version=4.0

Create an rvmrc file in root folder:

$ vim rvmrc
$ rvm --rvmrc use ruby-2.0.0-p247@rails-4.0

uncomment the line gem ‘therubyracer’, platforms: :ruby from Gemfile

Start the server:

$ rails s

You are ready to go!!

Changes that you may need to perform while working with Rails 4 compared to old versions:

1. Check here for the New changes in Rails 4
2. If you are using devise gem use devise version 3 or above (

Rails mysql2 gem getting error checking for mysql_query() in -lmysqlclient… no

Make sure that you have installed mysql server and mysql client. Else install by

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

After that install the dependency library for mysql

$ sudo apt-get install libmysql-ruby libmysqlclient-dev

Install RVM, Ruby on CentOS

First download the Ruby Version Manager (RVM) installer as follows

$ sudo bash -s stable < <(curl -s )

RVM requires to add relevant users to it’s group. Open the file like so:

$ sudo vim /etc/group

Edit the ‘rvm’ group (likely the last entry) to look like:

Run the install:

$ cd /usr/local/rvm/bin
$ sudo ./rvm-installer

“Upgrade of RVM in /usr/local/rvm/ is complete.”

I needed to reload the RVM to continue, this might not be required:

$ rvm reload

If it shows -bash: rvm: command not found

please close the terminal and start it again to load the RVM.

Now we can install the Ruby version. This will also install rubygems which is always useful…

$ rvm install 1.9.3 --with-openssl-dir=/usr
$ ruby -v
$ rvm use ruby-1.9.3-p327 --default

If you are getting nokogiri error like:

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

checking for libxslt/xslt.h… no

libxslt is missing.

then install

$ sudo yum install -y gcc ruby-devel libxml2 libxml2-devel libxslt libxslt-devel


Install Rails 3 on Ubuntu 10.04 Lucid Lynx Using RVM with Mysql and sphinx

First install ‘curl’ and ‘git’

  • step 1: install curl
    $ sudo apt-get install curl
  • step 2: install git
    $ sudo apt-get install git-core
  • Then install RVM

  • step 3: install rvm
    $ bash < <( curl )
  • step 4: edit .bashrc file to load rvm into the shell session
    $ gedit .bashrc
    Add the following line to the end of the file:
    if [[ -s “$HOME/.rvm/scripts/rvm” ]] ; then source “$HOME/.rvm/scripts/rvm” ; fi
  • step 5 : restart linux
    $ sudo reboot
  • step 6 : type
    $ rvm notes
    In the notes RVM tells you what packages you’re gonna need to install for various flavors of Ruby. Since we’re going with 1.9.2 we want the packages it lists under the MRI & ree section. Let’s install those now.
    $ sudo aptitude install build-essential bison openssl libreadline5 libreadline-dev curl git-core zlib1g zlib1g-dev libssl-dev vim libsqlite3-0 libsqlite3-dev sqlite3 libreadline-dev libxml2-dev git-core subversion autoconf
  • Install Ruby 1.9.2

  • step 7 : install ruby 1.9.2 through rvm
    $ rvm list known
    $ rvm install 1.9.2-head
    for 64bit:
    $ rvm install 1.9.2
  • step 8 : make ruby 1.9.2 as default
    $ rvm –default ruby-1.9.2-head
    for 64bit:
    $ rvm –default ruby-1.9.2
    check ruby version
    $ ruby -v
  • Install Rails 3

  • step 9 : Install rails 3
    $ gem install i18n tzinfo builder memcache-client rack rack-test rack-mount erubis mail text-format thor bundler
    $ gem install rails –pre
  • Select your database

  • step 10 : Install database
    For Sqlite3
    $ sudo apt-get install sqlite3 libsqlite3-dev
    $ gem install sqlite3-ruby
    $ sudo apt-get update
    For Mysql goto synaptic package manager and type
    mysql-server, mysql-client and install and set password.
    Install mysql client libraries :
    $ sudo aptitude install libmysqlclient16-dev
    $ sudo apt-get install libmysql-ruby libmysqlclient-dev
  • Install Sphinx

  • If you want sphinx, install Sphinx
    $ wget
    $ tar xzvf sphinx-
    $ cd sphinx-
    $ ./configure
    $ make
    $ sudo make install
  • To know about sphinx type
    $ search

If you are getting error when starting sphinx make sure that the ‘indexer’,’searchd’,’search’ is under /usr/local/bin or under where sphinx specifies.
You are now ready to go…