You must start the MySQL database before configuring Commerce Reference Store.
To start MySQL on Linux:
In a UNIX shell, enter the following command:
sudo /etc/init.d/mysqld start
Note: This command assumes you are not logged in as the root user and that MySQL has been installed in its default location.
To start the MySQL database on Windows:
From the Start menu, choose All Programs.
In the Programs menu, click ATG 10.1.1, then click Tools.
Click the Start MySQL Server option.