From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp1 ([2001:41d0:2:bcc0::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) by ms0.migadu.com with LMTPS id SEgIJsTQiWAB+wAAgWs5BA (envelope-from ) for ; Wed, 28 Apr 2021 23:16:52 +0200 Received: from aspmx1.migadu.com ([2001:41d0:2:bcc0::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp1 with LMTPS id ucORIcTQiWD5HAAAbx9fmQ (envelope-from ) for ; Wed, 28 Apr 2021 21:16:52 +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 0C490FB6E for ; Wed, 28 Apr 2021 23:16:52 +0200 (CEST) Received: from localhost ([::1]:38264 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lbrYB-0001DD-5t for larch@yhetil.org; Wed, 28 Apr 2021 17:16:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54068) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lbrXw-0001D7-PB for guix-devel@gnu.org; Wed, 28 Apr 2021 17:16:36 -0400 Received: from mira.cbaines.net ([212.71.252.8]:37098) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lbrXr-0004U0-Ut; Wed, 28 Apr 2021 17:16:36 -0400 Received: from localhost (unknown [IPv6:2a02:8010:68c1:0:8ac0:b4c7:f5c8:7caa]) by mira.cbaines.net (Postfix) with ESMTPSA id A4A3F27BC7C; Wed, 28 Apr 2021 22:16:29 +0100 (BST) Received: from capella (localhost [127.0.0.1]) by localhost (OpenSMTPD) with ESMTP id aa3edd1b; Wed, 28 Apr 2021 21:16:29 +0000 (UTC) References: <878s52rwna.fsf@gnu.org> User-agent: mu4e 1.4.15; emacs 27.1 From: Christopher Baines To: Ludovic =?utf-8?Q?Court=C3=A8s?= Subject: Re: ISO image: to xz or not to xz? In-reply-to: <878s52rwna.fsf@gnu.org> Date: Wed, 28 Apr 2021 22:16:26 +0100 Message-ID: <87sg3ads9h.fsf@cbaines.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Received-SPF: pass client-ip=212.71.252.8; envelope-from=mail@cbaines.net; helo=mira.cbaines.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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 Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1619644612; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post; bh=oEw4Hc1wjgZNVvcRE/haAKEXj5Gfu5cAPLLiIEpOQ60=; b=Wt/xfcHxIC43+DNmZU3EV90CrOas2kiYQAjdvY9BuAuRK98B+PoTHFKexFx74ynh13utA4 XKs+Li41kUcknibBDG0+eQOgKt2VzPceUfAuPHUet54sxaZ20DMqiXhxeSgtBo8ghZ42F5 O6glDZTRBK/7wrOZfYg5x91a3yP7YqECUSWiBsWrXszDdmL6TIwnce3tCwRo1yQBEl/yBh D7gWpSeqPnbWINiz4O8ZKbA+BPllHYN3vvFkFn4QhRqY+zGy2Vt5fEF0Rsau0ivbROWIz/ a8MtkYSDHssnXtuGUIfxarprvQ9ideYc+lgcVBjLyCzpUemldVmRPqP88Gf1WQ== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1619644612; a=rsa-sha256; cv=none; b=pqM8KCZ/QHC1Td6Q3o6EdhfNlveKrjWaWxaETME5n9eWz3HuLWg5HE5Kls0JmJMXpmBzXi UdJZ4c7G2Uyo1nG1/Mn7Znlf2nF6RuiMcpw9V3+upTw7VMJFg3LpT0+B+a1uDRhcOQV6FO NSctrOH0u3ywI58VnMvPrMLu6zCPIrsYiW69Jwm0C4HgiqxtDEYHbODz+05q4tJO+qa0EV bBWDAN+/apxhUuhvfD6PD14ZisGzMJDZREwGGK9MXdODMfbHqoGANDq4yJMii83pZmQ2Gb D8peJm78IWu8DVnvHH7wi7C2wOFJX5nzbkknGgSzuZ9ifo8MLa3zKYdnOX0j8w== ARC-Authentication-Results: i=1; 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-Migadu-Spam-Score: -3.55 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-Migadu-Queue-Id: 0C490FB6E X-Spam-Score: -3.55 X-Migadu-Scanner: scn0.migadu.com X-TUID: 83//290acvCs --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Ludovic Court=C3=A8s writes: > Hi! > > Here=E2=80=99s the installation ISO image (with built-in zlib compression= ): > > --8<---------------cut here---------------start------------->8--- > $ ./pre-inst-env guix system image -t iso9660 gnu/system/install.scm > /gnu/store/kg63cyg94dmy9x7rpxf5ycn97sqx1ndl-image.iso > $ xz < /gnu/store/kg63cyg94dmy9x7rpxf5ycn97sqx1ndl-image.iso > /tmp/t.iso= .xz > $ du -h /tmp/t.iso.xz > 496M /tmp/t.iso.xz > $ du -h /gnu/store/kg63cyg94dmy9x7rpxf5ycn97sqx1ndl-image.iso > 647M /gnu/store/kg63cyg94dmy9x7rpxf5ycn97sqx1ndl-image.iso > --8<---------------cut here---------------end--------------->8--- > > The xz-compressed image is 23% smaller, which is not negligible. > However, it=E2=80=99s apparently quite unusual to distribute compressed I= SOs and > some services/tools such as libosinfo require plain ISOs (uncompressed). > > Should we distribute the installation ISO without xz compression? Personally I think the ISO is more useful if it's published as such, rather than an as a xz compressed file. I believe this will make things like getting Guix through Gnome Boxes easier, and using Guix at various hosting providers easier. --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQKlBAEBCgCPFiEEPonu50WOcg2XVOCyXiijOwuE9XcFAmCJ0KpfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDNF ODlFRUU3NDU4RTcyMEQ5NzU0RTBCMjVFMjhBMzNCMEI4NEY1NzcRHG1haWxAY2Jh aW5lcy5uZXQACgkQXiijOwuE9XcOuBAAriktfq+25QPihUyKrU1Ajj4WuH7V6s5Q T/yMq6TqRsG2orb9BCUMvBXfDPMvjJwkwsGTPmTLWuwgKIw8kMjUP+OdScLj8MpS cM25AdmIb2D6uMF4irbbF09LjAw2lSJ0BHX3rIDkztyMIV53zcXFmv+L1Kh/iAYg n7t9VF7G7aiu4qA8icNzruLWQjvh4YaKpSxrPbqLKJrENXY1hGj9ZOFkshpUOJW3 w2FMuZLze9wS2964b0eRYbsI1KEnqcaHoM4LQmeq2690hnHeWtgBU+33jU8j0Pn2 BOippjiSWCUn1pT6DuJ1C1EyFcGb55iUmbxoCZ3014+eMRZeBDkI+sPwGX5sWXFB 7X9VwTkhN0PKHN3Qo/ed0YGcX7F1XmW8aOWWd0uYtnMtB+jPcgrfoC+2AMkGPGof h/TsGjmEeYwcRvQorFGozjkWbgEn8T9tjrBlRLvP0SgDwqrCaavjaTuU/KQrqXQb ZyDNP6JWmXrVJR8HaoAODrnFWkp7poIY2eFyf+Fmw+WUK7aSvlnsEL/Y0hSkqVbn IBhH1yCLWVdnM/VuZsbJ81ILXwEUzMTyCtjvX0TUjO+m0VeB5QSmoqbGeeEHPAlX OfM86QxXJCiWf6thZE6/rFGZ+GfQcobkbkfI4vlEp0IvGSYfwbyOcM0oma9QjZSz 4SHjyQrqtAA= =SUS9 -----END PGP SIGNATURE----- --=-=-=--