Howto install Rails 2.3, Ruby 1.9.1, MySQL 5.1 on Ubuntu Lucid 10.04 LTS or Ubuntu Maverick 10.10

NOTE:

This tutorial is out of date. Though Rails team said Rails 2.3 is nearly 100% compatible with Ruby19, there are many issues with third party gems. Thereby, it is not ideal to use Rails 2.3.x with Ruby19 in general. I’d highly recommend you to switch to Rails 3.x + Ruby 1.9.2 for best compatibility and performance.

I have written another tutorial on How to install Rails 3.x, Ruby 1.9.2. Link is here:

https://joneslee85.wordpress.com/2010/12/14/howto-install-rails-3-0-ruby-1-9-2-mysql-5-1-on-ubuntu-lucid-10-04-lts-or-ubuntu-maverick-10-10/

Prerequisites

Ubuntu repository contains Ruby 1.9.1 package however this package suffers few bugs that doesn’t run some Gem packages. So I would highly RECOMMEND you to compile for yourself a instance of Ruby 1.9.1 from source. To compile Ruby from source, you need to install compilers and libraries headers.

NOTE: This tutorial can be applied for Ubuntu Maverick 10.10. The only difference is installing libreadline6-dev instead of libreadline5-dev. But I highly recommend you guys to stay with Lucid 10.04 LTS for production server.

$ sudo apt-get -y install libc6-dev libssl-dev libmysql++-dev libsqlite3-dev make build-essential libssl-dev libreadline5-dev zlib1g-dev

Install Ruby 1.9.1 from source


$ cd /tmp
$ mkdir src
$ cd src
$ wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p378.tar.bz2
$ tar xjvf ruby-1.9.1-p378.tar.bz2
$ cd ruby-1.9.1-p378
$ ./configure --prefix=/usr/local
$ sudo make && sudo make install


You can check if Ruby has been installed successfully by

$ ruby -v

and it should output

ruby 1.9.1p378 (2010-01-10 revision 26273) [i686-linux]

Should you see the “Happy new Ruby” returned, then your installation is ready to go

ruby -ropenssl -rzlib -rreadline -e "puts 'Happy new Ruby'"

Ruby 1.9 bundles RubyGem so you don’t have to install it

Update: Ruby 1.9.1-p429 and p430 released. You are NOT recommended to use this version. The reason is explained below. However if you like, you can install this patchset version:


$ cd /tmp
$ mkdir src
$ cd src
$ wget ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p430.tar.bz2
$ tar xjvf ruby-1.9.1-p430.tar.bz2
$ cd ruby-1.9.1-p430
$ ./configure --prefix=/usr/local
$ sudo make && sudo make install


and make sure you replace any occurrences of 1.9.1-p378 with 1.9.1-p429 or p430 for next few steps.

For now, I stick with p378 because p429 and p430 suffer the force_encoding on frozen string in gem_prelude bug. This bug will give you error warning when you run


$ gem list
Error loading gem paths on load path in gem_prelude
can't modify frozen string
<internal:gem_prelude>:69:in `force_encoding'
<internal:gem_prelude>:69:in `set_home'
<internal:gem_prelude>:38:in `dir'
<internal:gem_prelude>:76:in `set_paths'
<internal:gem_prelude>:47:in `path'
<internal:gem_prelude>:286:in `push_all_highest_version_gems_on_load_path'
<internal:gem_prelude>:355:in `<compiled>'


Install SQLite3 and MySQL 5.1

$ sudo apt-get install mysql-server-5.1 sqlite3

Please make sure you set a password for MySQL server.

Install Rails and essential gems


$ sudo gem update --system
$ sudo gem install mysql rails rack rake mysql sqlite3-ruby
$ sudo gem install ruby-debug19 -- --with-ruby-include=./ruby-1.9.1-p378/


We can check if all gems are installed successfully

$ gem list

and it should list


actionmailer (2.3.8)
actionpack (2.3.8)
activerecord (2.3.8)
activeresource (2.3.8)
activesupport (2.3.8)
rack (1.1.0)
rails (2.3.8)
rake (0.8.7)
mysql (2.8.1)
rubygems-update (1.3.5)
sqlite3-ruby (1.3.0)


Now you can generate your own Rails app. That’s all for now. See you in next tutorial.

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