[coreboot] Rettungsboot

ron minnich rminnich at gmail.com
Mon Nov 28 05:30:56 CET 2016


On Sun, Nov 27, 2016 at 5:58 PM Charlotte Plusplus <
pluspluscharlotte at gmail.com> wrote:

> I don't know about you, but once I have a minimal working kernel or a
> coreboot fallback, I never really update them. So having no way to recover
> them without hardware intervention is fine. The kernel I may recompile,
> patch, etc would be somewhere else.
>
> The job of this minimal kernel and initrd would just be to kexec the other
> kernel, and let you recover coreboot if needed.
>

It really, really happens in many environments that you find you need to
update that kernel.

 It's true that you, personally, might not want to do that. But any
realistic design needs to accommodate a kernel update, which further means
any realistic design needs to accommodate two kernels. Because, sooner or
later, you'll flash a broken kernel (I did this once on 1000 nodes) and you
have got to have a way out.

Not saying you *have to use that*, mind you; but a design has to be able to
do that.

ron
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