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Re: Kernel Update on Stretch

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Hi, Darac.

On 14/02/17 10:01, Darac Marjal wrote:

>>> Some time ago I read that Linux 4.x incorporates the feature to be
>>> updated without requiring a restart of the operating system.

>> Some Linux Distributions have such a feature. Debian is not one of them.

> Actually, yes it is, you just need to install the user space tools.[1]
> 
> The facility is called "kexec" (named after the system call to 'EXECute
> a new Kernel', I suspect). Install the "kexec-tools" package and, if I'm
> reading that page correctly, the "reboot" command will be replaced by a
> kexec call (see the linked page, though, for precautions about your
> first reboot).
> 
> [1] wiki.debian.org/BootProcessSpeedup#Using_kexec_for_warm_reboots

Reading about the documentation you mentioned and researching a little
more about kexec, I see that kexec skips the BIOS init part, but it
requires a boot anyway.

In fact, I see that kexec is present in Jessie and I've also seen some
examples of use with 2.6 series kernels. I understand that what I
mentioned was introduced with Linux 4.x.


Thanks for your reply.

Kind regards,
Daniel

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Thread

Kernel Update on Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2017-02-14 01:00 +0100
  Re: Kernel Update on Stretch Sven Hartge <sven@svenhartge.de> - 2017-02-14 13:50 +0100
    Re: Kernel Update on Stretch Darac Marjal <mailinglist@darac.org.uk> - 2017-02-14 14:10 +0100
      Re: Kernel Update on Stretch Sven Hartge <sven@svenhartge.de> - 2017-02-14 14:30 +0100
        Re: Kernel Update on Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2017-02-14 15:00 +0100
      Re: Kernel Update on Stretch Daniel Bareiro <daniel-listas@gmx.net> - 2017-02-14 14:50 +0100
  Re: Kernel Update on Stretch Christian Seiler <christian@iwakd.de> - 2017-02-14 15:20 +0100

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