From hgn at posteo.org  Mon Oct 14 23:39:12 2019
From: hgn at posteo.org (hgn)
Date: Tue, 15 Oct 2019 01:39:12 +0200
Subject: [mkroot] =?utf-8?q?where_to_put_kernel_configuration_options=3F?=
Message-ID: <90f54225e12caf02d098cee13cb5fd8c@posteo.de>

Hello,

I have chosen mkroot to learn more about Linux distributions and kernels 
and want to play around a bit. In the end there is a hypothetical 
specialized linux distro for an offline computer where I work, but if 
"only" learning will be achieved I am happy as well.

That said, I am learning to make a kernel and mkroot at the same time. I 
wanted to try out these kernel options:

https://make-linux-fast-again.com/

Where would I put them in mkroot?

Thank you for this project!

hgn


From rob at landley.net  Tue Oct 15 19:51:02 2019
From: rob at landley.net (Rob Landley)
Date: Tue, 15 Oct 2019 14:51:02 -0500
Subject: [mkroot] where to put kernel configuration options?
In-Reply-To: <90f54225e12caf02d098cee13cb5fd8c@posteo.de>
References: <90f54225e12caf02d098cee13cb5fd8c@posteo.de>
Message-ID: <6750219c-26a7-f702-7b17-22aec5ebc76f@landley.net>



On 10/14/19 6:39 PM, hgn wrote:
> Hello,
> 
> I have chosen mkroot to learn more about Linux distributions and kernels and
> want to play around a bit. In the end there is a hypothetical specialized linux
> distro for an offline computer where I work, but if "only" learning will be
> achieved I am happy as well.
> 
> That said, I am learning to make a kernel and mkroot at the same time. I wanted
> to try out these kernel options:
> 
> https://make-linux-fast-again.com/
> 
> Where would I put them in mkroot?

In https://github.com/landley/mkroot/blob/master/module/kernel you could put
them in getminiconfig (options for all architecures) or in architecture-specific
section.

In the version I merged into toybox I'd probably add a KERNEL_EXTRACONFIG
variable to https://github.com/landley/toybox/blob/master/scripts/mkroot.sh#L429
and have it output after $KERNEL_CONFIG in getminiconfig(). Then you could
specify more config on the command line, although the newlines would be awkward.
Hmmm... Maybe

  echo "$KERNEL_EXTRACONFIG" | tr '|' '\n'

and then you could

  make root KERNEL_EXTRACONFIG="THINGY=y|THINGY2=y"

Or something? (Which raises the question of whether it should be in the
environment variable whitelist so you don't have to specify it on the command
line. Sigh: design questions.)

> Thank you for this project!

You're welcome. Let me know if you have any questions.

> hgn

Rob