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Re: Preparing the reduced bootstrap tarballs

From: Jan Nieuwenhuizen
Subject: Re: Preparing the reduced bootstrap tarballs
Date: Sun, 18 Nov 2018 08:32:21 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

Ludovic Courtès writes:


>> Still I hope these won't last for five more years ;-)
> Well I hope these will last for at least a couple of years, or at least
> this is what we should aim for.

Yes, we should aim for that while creating them.  I'm possibly a bit too
eager to replace the reduced binary seed bootstrap by a scheme only
bootstrap and reduce all of our seeds even further.

> Replacing bootstrap binaries is not anecdotal as I wrote because these
> are “binary blobs” that need a special procedure to verify them; that
> they are smaller blobs is of course a crucial improvement, but it
> doesn’t change the fact that one may want to verify them.

Fully agree.

> As discussed yesterday on IRC, please also make sure make-bootstrap.scm
> does not refer to (gnu packages bootstrap) at all since that would be
> like running in circles.

Thank you.  Right, that's fixed now.

> As discussed just now on IRC, we probably also need #:system
> "i686-linux" in the appropriate places such that “guix build
> bootstrap-tarballs” gives the same result on i686 and on x86_64.

I'm looking into that right now.

>> From cc3782c5f9d2c606a265be0dfdca44d79ec25622 Mon Sep 17 00:00:00 2001
>> From: Jan Nieuwenhuizen <address@hidden>
>> Date: Fri, 16 Nov 2018 21:30:00 +0100
>> Subject: [PATCH 2/3] bootstrap: Add %bootstrap-mescc-tools.
>> Built with
>>     5702107a31f52a615c516084b7a82d9f5e2967e0 bootstrap: Add 
>> mescc-tools-static, mescc-tools-static-tarball.
>> * gnu/packages/bootstrap.scm (%bootstrap-mescc-tools): New variable.
> OK.
> If you want, before pushing this patch, you can first push the one
> above.  From there I (and possibly others!) will run “guix build
> bootstrap-tarballs” and make sure we get the same result as you did.

Great, done.  I missed

    5b01b6034aeab32a5011c5757f18bd9772d3497d python: Honor '--cores=...' in 

happening yesterday; so pushed as

    bootstrap: Add mescc-tools-static, mescc-tools-static-tarball.

Note you'll also need something like these three extra commits

--8<---------------cut here---------------start------------->8---
2d8f7e2ac bootstrap: Update %bootstrap-tarballs.
57fbf077a bootstrap: Replace %mescc-tools-seed with %bootstrap-mescc-tools.
706574ee4 bootstrap: Add %bootstrap-mescc-tools.
--8<---------------cut here---------------end--------------->8---

from core-updates-next @ to be able to
build `guix --system=i686-linux bootstrap-tarballs'.  Until then, the
recipe is

--8<---------------cut here---------------start------------->8---
./pre-inst-env guix build --system=i686-linux mes-stripped-tarball 
--8<---------------cut here---------------end--------------->8---

Rebuilding that right now, let's compare what we get.

Thanks for all your input!

Jan Nieuwenhuizen <address@hidden> | GNU LilyPond
Freelance IT | Avatar®

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