October 2011
Intermediate to advanced
928 pages
34h 56m
English
Content preview from Mac OS X Lion: The Missing ManualBecome 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-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 Mac 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 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 updates from the Support area of Apple’s Web site (if indeed Mac 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, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.