From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id V67rCwFCzF5zSwAA0tVLHw (envelope-from ) for ; Mon, 25 May 2020 22:09:05 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id ODaABwFCzF7zHwAAbx9fmQ (envelope-from ) for ; Mon, 25 May 2020 22:09:05 +0000 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id DEDF694042C for ; Mon, 25 May 2020 22:09:04 +0000 (UTC) Received: from localhost ([::1]:44344 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jdLHL-0006Uf-UG for larch@yhetil.org; Mon, 25 May 2020 18:09:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39612) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jdLHE-0006Q2-Co for guix-devel@gnu.org; Mon, 25 May 2020 18:08:56 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:58591) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jdLHE-0006fR-44; Mon, 25 May 2020 18:08:56 -0400 Received: from [2a01:e0a:1d:7270:af76:b9b:ca24:c465] (port=52432 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jdLHD-0000Zd-6y; Mon, 25 May 2020 18:08:55 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= To: Jan Nieuwenhuizen Subject: Re: Providing a Guix System images catalog. References: <875zckvxp3.fsf@gnu.org> <871rn7hhl6.fsf@gnu.org> X-URL: http://www.fdn.fr/~lcourtes/ X-Revolutionary-Date: 8 Prairial an 228 de la =?utf-8?Q?R=C3=A9volution?= X-PGP-Key-ID: 0x090B11993D9AEBB5 X-PGP-Key: http://www.fdn.fr/~lcourtes/ludovic.asc X-PGP-Fingerprint: 3CE4 6455 8A84 FDC6 9DB4 0CFB 090B 1199 3D9A EBB5 X-OS: x86_64-pc-linux-gnu Date: Tue, 26 May 2020 00:08:53 +0200 In-Reply-To: <871rn7hhl6.fsf@gnu.org> (Jan Nieuwenhuizen's message of "Mon, 25 May 2020 22:42:29 +0200") Message-ID: <87pnarr7ka.fsf@gnu.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel@gnu.org, Mathieu Othacehe Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: Ad1qEqZ+BReJ Hi, Jan Nieuwenhuizen skribis: > Mathieu Othacehe writes: > > Hello Mathieu, > >> To build a Guix System image, one needs to pick an operating system file >> and call "guix system disk-image my-os.scm" to get an image. >> >> While this works fine on desktop, this is more tricky for the embedded >> devices. Which operating system to select in "examples" folder? What's >> the difference between --system and --target, which one should I use? >> >> This attached, wip patch, allows to run (on wip-hurd-vm branch): >> >> guix system image hurd-disk-image >> >> instead of: >> >> guix system disk-image --target=3Di586-pc-gnu gnu/system/examples/bare-= hurd.tmpl > > That's pretty nice! +1! > I wonder about how this composes; if I'd want to add say a guix-daemon > service to the bare-hurd, how would I do that? How about leaving the =E2=80=98operating-system=E2=80=99 field of t= o #f or some default value, and then filling it in with the argument passed to =E2=80=98= guix system=E2=80=99? Or better: at the API level, we=E2=80=99d look for an =E2=80=9Cimage constr= uctor=E2=80=9D (or =E2=80=9Cimage type=E2=80=9D), not an image, where an image constructor is = a procedure that takes an and returns an . In practice, you=E2=80=99d wrap that in with a =E2=80=98name=E2=80=99 field= so you can still look them up by name. Thoughts? Ludo=E2=80=99.