The main installation menu allows you to select any phase of the installation process at any time. You can also have it walk you through each part of the installation in order by selecting ``Next'' from the menu each time, or rejoin the Express Install. If you chose the steps individually, bear in mind that some steps are prerequisite to others. You should also be aware of the consequences of doing parts of the installation twice. In general, if you make an error from which you are unsure if you can recover without problems, restart the installation.