Lesson 27. System Troubleshooting
System startup certainly isn’t the most glamorous part of OS X, but it’s clearly important and technically quite impressive. Apple has improved startup and runtime processes with every revision of OS X. When things work correctly, the startup process often takes under 30 seconds. Obviously, users appreciate a quick startup, but most aren’t aware of what goes on during system startup, because their Mac computers usually work properly.
However, when things do go wrong during system startup, ...
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