Macworld Lion Installation Superguide

At long last, Lion (Mac OS X 10.7) is available, and unlike previous versions of the Mac OS, getting it doesn't involve driving to the nearest Apple Store or retailer, or waiting for the FedEx truck to arrive—you just download it directly from the Mac App Store. Let Macworld's Dan Frakes help you through the installation process, from the simple to the outrageously complex.
In this book, we cover the requirements for running the next big cat; the things you should do to get your Mac ready; and the purchase and download processes. We walk you through the actual installation; recommend some post-install tasks; discuss some upgrade challenges; and help you decide if a "clean install" is for you. We've also got instructions for creating a bootable Lion installer disc or drive, as well as for installing Lion over Leopard (Mac OS X 10.5), provided you have the appropriate license to do so. Finally, we've got a hands-on look at Lion's new recovery mode, and Lion Recovery Disk Assistant.