O'Reilly logo

Mac OS® X Lion™ on Demand by Steve Johnson - Perspection, Inc.

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

A. Appendix: Installing Mac OS X Lion

What You’ll Do

Prepare to Install Mac OS X Lion

Determine the Current Mac OS Version

Get Mac Information

Get Mac OS X Lion from the App Store

Install Mac OS X Lion

Reinstall Mac OS X Lion

Introduction

If you’re upgrading to Mac OS X Lion from a previous version of Mac OS X, this appendix describes how to prepare and install Mac OS X Lion. The temptation is to download the Installation app from the Mac App Store and start the installation, but you can avoid problems by making sure your computer is ready for Mac OS X Lion. Before you install Lion, you need to check your computer hardware and software and make several setup decisions that relate to your computer. When you’re ready to start the installation, ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required