Linked by Thom Holwerda on Thu 16th Oct 2008 22:08 UTC, submitted by diegocg
Kexec is a feature that allows to boot kernels from a working kernel. It was originally intended for use by kernel and system developers who had to reboot several times a day. Soon, system administrators for high-availability servers found use for it as well. As systems get more and more advanced, and boot times get longer, end users can now benefit from it.
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Member since:
2005-12-31
> Of course, you have to have two kernels that understand the same
> serialization structures. So it would have to be versioned and you would
> have to have some way to fall back to the old kernel in case the new
> one had a problem in the deserialization.
I think that kinda defeats the purpose. Exchanging kernels is a risky task anyway, and introducing yet another potential source of problems (like the de-/serialization you mentioned) doesn't seem very wise to me. Especially if your goal is either kernel development or a high-availability system.