From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp2 ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms11 with LMTPS id KNxmFyonyF7pDQAA0tVLHw (envelope-from ) for ; Fri, 22 May 2020 19:25:30 +0000 Received: from aspmx1.migadu.com ([2001:41d0:2:4a6f::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp2 with LMTPS id oKZaEyonyF4VRgAAB5/wlQ (envelope-from ) for ; Fri, 22 May 2020 19:25:30 +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 A1E32940418 for ; Fri, 22 May 2020 19:25:29 +0000 (UTC) Received: from localhost ([::1]:55402 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jcDIO-0005cP-Hy for larch@yhetil.org; Fri, 22 May 2020 15:25:28 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59880) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jcDHy-0005D3-Jx for guix-patches@gnu.org; Fri, 22 May 2020 15:25:02 -0400 Received: from debbugs.gnu.org ([209.51.188.43]:48893) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jcDHy-00088R-9J for guix-patches@gnu.org; Fri, 22 May 2020 15:25:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jcDHy-0004lg-3w for guix-patches@gnu.org; Fri, 22 May 2020 15:25:02 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#41350] [PATCH v2 3/3] system: vm: Build vm-image using native qemu, for the Hurd. In-Reply-To: <87mu66q3rt.fsf@gnu.org> Resent-From: Mathieu Othacehe Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Fri, 22 May 2020 19:25:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 41350 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: Ludovic =?UTF-8?Q?Court=C3=A8s?= Cc: 41350@debbugs.gnu.org, "Jan \(janneke\) Nieuwenhuizen" Received: via spool by 41350-submit@debbugs.gnu.org id=B41350.159017549618312 (code B ref 41350); Fri, 22 May 2020 19:25:02 +0000 Received: (at 41350) by debbugs.gnu.org; 22 May 2020 19:24:56 +0000 Received: from localhost ([127.0.0.1]:60439 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jcDHs-0004lI-Cr for submit@debbugs.gnu.org; Fri, 22 May 2020 15:24:56 -0400 Received: from eggs.gnu.org ([209.51.188.92]:52448) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jcDHo-0004l4-Sb for 41350@debbugs.gnu.org; Fri, 22 May 2020 15:24:55 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:55150) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jcDHi-00084S-TL; Fri, 22 May 2020 15:24:46 -0400 Received: from [2a01:e0a:fa:a50:7ced:409d:b570:ed70] (port=56690 helo=meru) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jcDHg-00037X-OX; Fri, 22 May 2020 15:24:46 -0400 From: Mathieu Othacehe References: <20200519072302.9202-1-janneke@gnu.org> <20200519072302.9202-3-janneke@gnu.org> <87367ue09v.fsf@gnu.org> Date: Fri, 22 May 2020 21:24:42 +0200 Message-ID: <87pnavu611.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-Spam-Score: -2.3 (--) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-Spam-Score: -3.3 (---) X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-patches-bounces+larch=yhetil.org@gnu.org Sender: "Guix-patches" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-patches-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-patches-bounces@gnu.org X-Spam-Score: -1.01 X-TUID: TDDKRsb0wQQ8 Hey Ludo! > 1. When cross-compiling, can the =E2=80=98qemu-image=E2=80=99 procedure= to its job by > running exclusively native software (in particular using a native > QEMU, native kernel, etc.)? I think the answer is yes, but I raised a concern about being able to run grub-install from an ARM system to build a cross-compiled x86-64 system (for instance). For now, running this command shows: --8<---------------cut here---------------start------------->8--- ls $(guix build --system=3Daarch64-linux grub)/lib/grub/ arm64-efi --8<---------------cut here---------------end--------------->8--- So, the native aarch64-linux is only able to install itself on the same system. I think can be fixed though (same as for grub-hybrid package). > As for (2), I=E2=80=99d say that when cross-compiling, it should just run= native > software but simply preserve references to cross-compiled software, > which is what janneke=E2=80=99s patch does. Yes, I agree. However, I think I found a way to install Grub, without root permissions, from the host system (see: https://lists.gnu.org/archive/html/guix-patches/2020-05/msg00988.html). This should allow to deprecate the whole (gnu system vm) module. Thanks for having a look :) Mathieu