A major feature that debuted in Lion (OS X 10.7) and continues in Mountain Lion (OS X 10.8) is one I hope you’ll never need to use: recovery mode, officially called OS X Recovery. (It was called Lion ...

The error message "Volume does not meet requirements for this update" may appear when attempting to install a Mac OS X updater or a full release from disc. Generally ...

It's easy to make boot disks on old Macs for older hardware, but as the years have gone on, it's gotten a little more difficult. Here's how to make classic Mac OS 9 and early Mac OS X boot media on ...

(Note: This guide is adapted from one I found buried in Google's cache, so I thought Ars might appreciate a more accessible, updated version.) If you follow these instructions you do so at your own ...

Sometimes you may need to reinstall OS X on a computer, but the drive is broken, resulting in an obvious problem with reading the installation DVD. Here are some methods to install OS X around a ...