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Take Control of Upgrading to Mavericks by Joe Kissell

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Use Recovery Mode

Recovery mode is a feature first introduced in Lion that lets you recover data (hence the name), perform disk maintenance, or even reinstall Mavericks without having a bootable DVD or external drive. It’s both cool and useful—but it’s not foolproof, and it has some rather surprising characteristics. In this chapter I discuss what it is, what it can and can’t do, and how to use it. We begin with the mysterious hidden volume that makes this magic possible.

Get to Know the Recovery HD Volume

Assuming everything works as it should—and, specifically, that you’re using one of the officially sanctioned volume structures as I discussed in Why to Avoid Extra Partitions—the Mavericks installer creates a special, hidden partition on the ...

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