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Absolute FreeBSD, 2nd Edition by Michael W. Lucas

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Build Your Own Kernel

Eventually, you'll find that you cannot tweak your kernel as much as you like using only sysctl and modules, and your only solution will be to build a customized kernel. This sounds much harder than it is; we're not talking about writing code here—just editing a text file and running a couple of commands. If you follow the process, it's perfectly safe. If you don't follow the process, well, it's like driving on the wrong side of the road. (Downtown. During rush hour.) But the recovery from a bad kernel isn't that bad, either.

The kernel shipped in a default install is called GENERIC. GENERIC is configured to run on a wide variety of hardware, although not necessarily optimally. GENERIC boots nicely on most hardware from the ...

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