Why does FreeBSD not use the Linux kernel?

Michael Sierchio kudzu at tenebras.com
Wed Jun 17 20:47:31 UTC 2020

On Wed, Jun 17, 2020 at 12:58 PM Steve O'Hara-Smith <steve at sohara.org>

> On Wed, 17 Jun 2020 11:33:25 +0800
> kindu smith <malaizhichun at tom.com> wrote:
> > Why does FreeBSD not use the Linux kernel?
>         The most fundamental reason that FreeBSD does not use *any* code
> from the Linux kernel is the GPL which is fundamentally incompatible with
> the BSD license.
>         There was MirosBSD which was BSD userland running on a Linux kernel
> but the project has been abandoned for some years.

OS X is XNU / Mach but much of the userland is FreeBSD-ish.


"Well," Brahmā said, "even after ten thousand explanations, a fool is no
wiser, but an intelligent person requires only two thousand five hundred."

- The Mahābhārata

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