Hardware Reference
In-Depth Information
Partition a Hard Drive
You can divide a hard drive into two (or more) separate areas called partitions , which effect-
ively turns the device into two logically distinct hard drives. The most common reason to par-
tition a hard drive is to use the second partition to install another operating system. In
Chapter 22 you learn how to install Windows on a second Mac Pro partition. However, you
can also use a second partition to install another version of OS X. This is often a good idea
because if your main version of OS X fails, you may be able to boot from the second version
of OS X to troubleshoot.
Partition a Hard Drive
Click Spotlight ( ).
Type disk .
Click Disk Utility .
The Disk Utility window appears.
 
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