GNU bug report logs - #55231
[PATCH v1] initrd: Allow extra search paths with ‘initrd-extra-module-paths’

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Message #245 received at 55231 <at> debbugs.gnu.org (full text, mbox):

From: Ludovic Courtès <ludo <at> gnu.org>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: Josselin Poiret <dev <at> jpoiret.xyz>, Ian Eure <ian <at> retrospec.tv>,
 Brian Cully <bjc <at> spork.org>, Morgan Arnold <morgan.arnold <at> proton.me>,
 Tobias Geerinckx-Rice <me <at> tobias.gr>, Leo Famulari <leo <at> famulari.name>,
 Andreas Enge <andreas <at> enge.fr>, Kaelyn <kaelyn.alexi <at> protonmail.com>,
 Felix Lechner <felix.lechner <at> lease-up.com>,
 Mathieu Othacehe <othacehe <at> gnu.org>,
 John Kehayias <john.kehayias <at> protonmail.com>,
 Christopher Baines <guix <at> cbaines.net>, 55231 <at> debbugs.gnu.org,
 Simon Tournier <zimon.toutoune <at> gmail.com>
Subject: Re: bug#55231: [PATCH v1] initrd: Allow extra search paths with
 ‘initrd-extra-module-paths’
Date: Mon, 17 Feb 2025 11:07:07 +0100

Maxim Cournoyer <maxim.cournoyer <at> gmail.com> skribis:

>>> +          ;; DRV2 is *not* available as a substitute, since it has drv1 as
>>> +          ;; input, and the non-substitutability is viral to avoid
>>> +          ;; distributing non-substitutable items that could have become
>>> +          ;; embedded, for example in an initrd.

Also, there are legitimate cases where the current semantics (where X is
not distributable but its dependents are) are what’s expected and relied
on.

We have some of these in HPC packages but also, more importantly, lots
of them in Guix proper: ‘imported-files/derivation’, ‘gexp->script’,
etc. produce non-substitutable derivations, but we definitely want its
dependents to be substitutable (otherwise ‘guix pull’ and large parts of
Guix System would not have substitutes, for instance.)

Ludo’.

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