In other words, you don’t have a downloadable version of the installer unless you happened to purchase Lion for another, older Mac. But if you have a Mac that debuted after Lion (any Mac from July 2011 or later), your Mac shipped with Lion pre-installed. When Lion debuted, I explained how to create a bootable Lion-installer drive from the Mac App Store version of Lion. (Lion Internet Recovery is available on mid-2011-or-later Macs, as well as some older Macs that have received recent firmware updates.) And if you’ve got a Mac that doesn’t support Lion Internet Recovery-a version of Lion Recovery based on special firmware-recovery mode may not even be available if your Mac’s drive itself is having problems, whereas a bootable install drive will always be there for you. For starters, Lion Recovery doesn’t include the full Lion installer-it requires you to download nearly 4GB of data before you can reinstall Lion-whereas a bootable installer drive contains the entire Lion installer, making installation much, much faster.
For example, if you want to install Lion on multiple Macs, a bootable installer drive can be more convenient than downloading or copying the entire Lion installer to each computer.īut even for troubleshooting, a bootable installer drive has advantages over Lion Recovery. But as I explained when Lion debuted, there are still good reasons to have a bootable installer disc or drive. It’s a convenient feature that, in theory, means you no longer have to carry a Mac OS X Install disc or a bootable external hard drive.
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