Rails3.2.1でMySQLを使う。

UbuntuにMySQLサーバーをインストール

sudo apt-get install mysql-server
sudo apt-get install libmysqlclient16-dev

vi /etc/mysql/my.cnf

[mysqld]
...
default-character-set=utf8
skip-character-set-client-handshake

Railsプロジェクト作成

rails new sandbox -d mysql

vi config/database.yml

development:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: sandbox_development
  pool: 5
  username: root
  password: 
  socket: /var/run/mysqld/mysqld.sock

rake db:create
rake db:migrate
rake db:fixtures:load