Install Sqlite3 sudo apt-get install sqlite3 libsqlite3-dev sudo gem install sqlite3-ruby To create a data base, we only need to create a empty file. touch database_name_dev.db touch database_name_test.db touch database_name_prod.db Configure Ruby on Rails Modificar el archivo config/database.yml: development: adapter: sqlite3 database: db/database_name_dev.db test: adapter: sqlite3 database: db/d