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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Gidi Gal <gidi.gal.linux@gmail.com>, kernelnewbies@kernelnewbies.org
Subject: Re: How to switch between installed kernel and developed kernel
Date: Tue, 23 Mar 2021 09:53:06 +0100	[thread overview]
Message-ID: <92d65bd0-d772-4bde-d2bf-0f7d91b5714b@pengutronix.de> (raw)
In-Reply-To: <CAB+0Vonjsn=WXP0nVay3ELVKN=fiNKV=iEvvL6esW0wkz8FjGg@mail.gmail.com>

Hello Gidi,

On 22.03.21 13:11, Gidi Gal wrote:
> Hello,
> 
> I am new to kernel development, currently working on
> https://kernelnewbies.org/FirstKernelPatch. I reached the step "Install
> your changes" in "Modifying a driver on native Linux". I would like to
> separate my developed kernel and my installed kernel and to switch between
> the two in order to test my changes. I am not sure that my tutorial
> explains how to do that. If you have a link that proposes a workflow for
> this request (or if my tutorial does explain this workflow and I'm missing
> the exact paragraph that does that) please let me know.

I've found running a kernel under qemu with my normal rootfs to be quite
useful to quickly try out things. See the qemu-test script in the RAUC project
for an example: https://github.com/rauc/rauc/blob/master/qemu-test

Don't forget to backup of course. Maybe you could even read-only mount
the rootfs for added safety.

Good luck,
Ahmad

> 
> Thanks,
> Gidi
> 
> 
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies@kernelnewbies.org
> https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
> 

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  parent reply	other threads:[~2021-03-23  8:53 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-22 12:11 How to switch between installed kernel and developed kernel Gidi Gal
2021-03-22 12:30 ` Bernd Petrovitsch
2021-03-22 12:57 ` Valdis Klētnieks
2021-03-22 12:59 ` Bjørn Mork
2021-03-22 17:53   ` Gidi Gal
2021-03-22 21:18     ` Aruna Hewapathirane
2021-03-22 21:19       ` Aruna Hewapathirane
2021-03-22 22:01         ` Gidi Gal
2021-03-23  1:17           ` Valdis Klētnieks
2021-03-23  4:29             ` Aruna Hewapathirane
2021-03-23 15:06               ` Valdis Klētnieks
2021-03-23 15:16                 ` Aruna Hewapathirane
2021-03-23 15:11               ` Gidi Gal
     [not found]               ` <CAB+0Vomu+EaW8N6VNMFcZBB29MxnYYvD=1bF98Tf+1YgwaRi2Q@mail.gmail.com>
2021-03-23 15:05                 ` Valdis Klētnieks
2021-03-23 15:23                 ` Aruna Hewapathirane
2021-03-23  8:53 ` Ahmad Fatoum [this message]
2021-03-25 15:42   ` jim.cromie

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