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Switching to the Mac: The Missing Manual, Mountain Lion Edition
book

Switching to the Mac: The Missing Manual, Mountain Lion Edition

by David Pogue
September 2012
Beginner content levelBeginner
762 pages
29h 25m
English
O'Reilly Media, Inc.
Content preview from Switching to the Mac: The Missing Manual, Mountain Lion Edition

Startup Problems

Not every problem you encounter is related to running applications. Sometimes trouble strikes before you even get that far. The following are examples.

Kernel Panic

When you see the cheerful, multilingual dialog box shown in Figure B-3 you’ve got yourself a kernel panic—a Unix nervous breakdown.

(In such situations, user panic might be the more applicable term, but that’s programmers for you.)

If you experience a kernel panic, it’s almost always the result of a hardware glitch—most often a bad memory (RAM) board, but possibly an accelerator card, graphics card, or USB hub that OS X doesn’t like. A poorly seated AirPort card can bring on a kernel panic, too, and so can a bad USB or FireWire cable.

If simply restarting the machine doesn’t help, detach every shred of gear that didn’t come from Apple. Restore these components to the Mac one at a time until you find out which one was causing OS X’s bad hair day. If you’re able to pinpoint the culprit, seek its manufacturer (or its Web site) on a quest for updated drivers, or at least try to find out for sure whether the add-on is compatible with OS X.

Tip

This advice goes for your Macintosh itself. Apple periodically updates the Mac’s own “drivers” in the form of a firmware update. You download these updates from the Support area of Apple’s Web site (if indeed OS X’s own Software Update mechanism doesn’t alert you to their existence).

There’s one other cause for kernel panics, by the way, and that’s moving, renaming, or changing ...

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Publisher Resources

ISBN: 9781449338978Supplemental ContentErrata Page