December 2003
Beginner to intermediate
776 pages
45h 2m
English
Content preview from Mac OS X: The Missing Manual, Panther EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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-2, 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.)
Kernel panics are increasingly rare. If you see one at all, it’s almost always the result of a hardware glitch—most often a bad memory (RAM) board, but possibly an accelerator card, graphics card, SCSI gadget, or USB hub that Mac OS X doesn’t like. A poorly seated AirPort card can even bring on a kernel panic.
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 Mac 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 Mac 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 updaters from the Support area of Apple’s Web site (if indeed Mac OS X’s own Software Update mechanism doesn’t alert you to its existence).
Figure B-2. A kernel panic is almost always related to some piece of add-on ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.