bob prohaska  writes:
> It recently dawned on me that I've never, ever been prompted to
> reboot my Pi3 after an upgrade, even when the system tells me it's
> unpacking a new kernel over the old one.
>
> I suppose it might be  possible slip a new kernel into memory  without
> disturbing userland processes, but it does not seem easy. Mac OS X
> explicitly requires rebooting after upgrade, Windows requires rebooting
> routinely 8-), is Raspbian so much more clever?

No. https://en.wikipedia.org/wiki/Ksplice can do that up to a point, but
(apparently) not on ARM.

> Or, does it just expect me to reboot after upgrading?

Yes.

--
https://www.greenend.org.uk/rjk/

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