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From: vallor <vallor@cultnix.org>
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Subject: Kexec (and HyperV) (was: Re: Dimdows Decay Syndrome Continues)
Date: 8 Feb 2025 08:44:20 GMT
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On Sat, 8 Feb 2025 06:36:16 -0000 (UTC), Lawrence D'Oliveiro
<ldo@nz.invalid> wrote in <vo6u10$3ue2q$1@dont-email.me>:

> On Fri, 7 Feb 2025 20:29:39 -0500, CrudeSausage wrote:
> 
>> On 2025-02-07 4:34 p.m., Lawrence D'Oliveiro wrote:
>>
>>> And today, Microsoft’s own experts have no clear idea what Windows is
>>> doing any more. Why do you think it needs to reboot about five times
>>> just to do an OS install?
>> 
>> I have to admit those reboots are a nuisance. Of course, Fedora
>> rebooted pretty often too.
> 
> There are ways to minimize that. Doesn’t RHEL support kexec, which
> allows the old Linux kernel to pass control to the new one without
> actually disrupting the userland?

You're thinking of live kernel patching.  kexec_load(2) load a kernel
that you can have execute if the current kernel crashes.  You do this
for debugging, usually.

ObWindows:  There was a post recently about various virtualization
solutions.  Linux subsystem for Windows now uses HyperV, and I'm
wondering if there is a native manager that Windows includes for other
HyperV guests?

-- 
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   "These shoes look like Frankenstein's hand-me-downs."