October 2011
Intermediate to advanced
928 pages
34h 56m
English
Content preview from Mac OS X Lion: The Missing ManualBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The Homemade Lion Installer Disk
Lion’s download-only schtick is revolutionary and, in most cases, incredibly convenient. But sometimes, you’ll miss having a physical disk with the Lion installer on it. You might wish you had one if, for example, you want to install Lion on a huge array of Macs, like the ones at a school or in a business; downloading that 4-gig installer over and over again would drive you crazy.
You might also wish you had an installation disk when your Mac starts acting up, and the tricks described in Appendix B don’t seem to work. And you need such a disk when you want to install Lion over a copy of Mac OS X 10.5 (Leopard) instead of Snow Leopard.
One way to get a Lion installation flash drive is to buy it from Apple for $70. As it turns out, though, you can make one yourself fairly easily. All you need is a hard drive, flash drive, or even a blank DVD. (Hard drives and flash drives are much faster at performing the actual installation.)
Phase 1: Format the Drive
If you’re planning to use a flash drive or hard drive, the first step is to format it so that the Mac will be able to start up from it. To do that, connect or insert the drive. (It needs at least 5 gigabytes of free space. These steps assume that there’s nothing else on it.)
Now open Disk Utility (it’s in your Applications→Utilities folder). In Disk Utility, click the drive’s name in the left-side list (not the partition name beneath it). Then click the Partition tab in the main window.
Under Partition Layout, ...
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