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 aLZcJaV2qV6nawAA0tVLHw (envelope-from ) for ; Wed, 29 Apr 2020 12:44:21 +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 GKL0La12qV4JdgAAB5/wlQ (envelope-from ) for ; Wed, 29 Apr 2020 12:44:29 +0000 Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:470:142::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 10FBF941BED for ; Wed, 29 Apr 2020 12:44:29 +0000 (UTC) Received: from localhost ([::1]:45732 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jTm4j-0007eJ-24 for larch@yhetil.org; Wed, 29 Apr 2020 08:44:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57774) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jTm4Y-0007cD-Aq for guix-devel@gnu.org; Wed, 29 Apr 2020 08:44:18 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.90_1) (envelope-from ) id 1jTm4X-00056L-Ny for guix-devel@gnu.org; Wed, 29 Apr 2020 08:44:18 -0400 Received: from sender4-of-o53.zoho.com ([136.143.188.53]:21313) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jTm4X-0004wB-7C for guix-devel@gnu.org; Wed, 29 Apr 2020 08:44:17 -0400 ARC-Seal: i=1; a=rsa-sha256; t=1588164254; cv=none; d=zohomail.com; s=zohoarc; b=iUpij9ALdSmCJ7UzZOpQ3cMxVr5lPcA9uo8vjyM9m8nmxi8Qn+lzjN2c1rXjKiFfCpzjnP+x/KLAQVSn9cZeCrXtx9/oS+1/XmIwcpbpcluCEPDkqHaNzu7BGAON5Vx12pPup31BhlahNTbHvK4W2urfpc4Un59qedfKk9qtfSc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1588164254; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=H0NTcuc2istJwG0uLFry9S7iGUXRyBz1O/kPUvkFp2o=; b=GQQNz6rueAn5XoKocvQTLFTv5BKVhgNtoBVKp8diHMC/WDLe/HEOuxoAaMdvyZYenVDaGDfspQ0/LK1/CgNWdZG4uSso9LEhyvTt5mhmWQg09IlihSjJszD/Vyp6QtAjK6GuXPerQyf/DaQCTgc0mJsxBmx8F9glHCml5YX2pNY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=elephly.net; spf=pass smtp.mailfrom=rekado@elephly.net; dmarc=pass header.from= header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1588164254; s=zoho; d=elephly.net; i=rekado@elephly.net; h=References:From:To:Cc:Subject:In-reply-to:Date:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding; bh=H0NTcuc2istJwG0uLFry9S7iGUXRyBz1O/kPUvkFp2o=; b=ClpYFvDqKUVfcarsFUcQi7wts3WD+LePCeP1RHYOvCl+BM85e2BtTJSNBb5veDB2 yAFjOK2FWlTxZLg6a0UjX32P3Fedxj+RyiI2mFp/5sJLNvJXmAMWkh7L9CS0YfwogYu cWipbCqxWAPiwuQ9ki9L5l3OVccGLUmPp+YbkKUA= Received: from localhost (p54AD4F43.dip0.t-ipconnect.de [84.173.79.67]) by mx.zohomail.com with SMTPS id 1588164252693508.4001477637738; Wed, 29 Apr 2020 05:44:12 -0700 (PDT) References: User-agent: mu4e 1.2.0; emacs 26.3 From: Ricardo Wurmus To: guix-devel@gnu.org Subject: Re: unexpected reproducibility of reproducible blog post? In-reply-to: X-URL: https://elephly.net X-PGP-Key: https://elephly.net/rekado.pubkey X-PGP-Fingerprint: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC Date: Wed, 29 Apr 2020 14:44:09 +0200 Message-ID: <87a72ujwbq.fsf@elephly.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-ZohoMailClient: External Received-SPF: pass client-ip=136.143.188.53; envelope-from=rekado@elephly.net; helo=sender4-of-o53.zoho.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/04/29 02:03:04 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Received-From: 136.143.188.53 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: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Scanner: scn0 X-Spam-Score: 2.99 Authentication-Results: aspmx1.migadu.com; dkim=fail (rsa verify failed) header.d=elephly.net header.s=zoho header.b=ClpYFvDq; dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 2001:470:142::17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Scan-Result: default: False [2.99 / 13.00]; GENERIC_REPUTATION(0.00)[-0.49323982436166]; DWL_DNSWL_FAIL(0.00)[2001:470:142::17:server fail]; R_SPF_ALLOW(-0.20)[+ip6:2001:470:142::/48:c]; R_DKIM_REJECT(1.00)[elephly.net:s=zoho]; TO_DN_NONE(0.00)[]; ARC_REJECT(2.00)[signature check failed: fail, {[1] = sig:zohomail.com:reject}]; IP_REPUTATION_HAM(0.00)[asn: 22989(0.18), country: US(-0.00), ip: 2001:470:142::17(-0.49)]; DKIM_TRACE(0.00)[elephly.net:-]; MX_GOOD(-0.50)[cached: eggs.gnu.org]; MAILLIST(-0.20)[mailman]; FORGED_RECIPIENTS_MAILLIST(0.00)[]; RECEIVED_SPAMHAUS_PBL(0.00)[84.173.79.67:received]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:22989, ipnet:2001:470:142::/48, country:US]; SUBJECT_ENDS_QUESTION(1.00)[]; TAGGED_FROM(0.00)[larch=yhetil.org]; FROM_NEQ_ENVFROM(0.00)[rekado@elephly.net,guix-devel-bounces@gnu.org]; RCVD_COUNT_FIVE(0.00)[6]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; URIBL_BLOCKED(0.00)[fastmail.net:email]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[elephly.net]; HAS_LIST_UNSUB(-0.01)[]; RCPT_COUNT_ONE(0.00)[1]; DNSWL_BLOCKED(0.00)[2001:470:142::17:from]; FORGED_SENDER_MAILLIST(0.00)[] X-TUID: TkV9v9kVvS0u Konrad Hinsen writes: > One question I have been wondering about is the possibility of grafts > being an obstacle to reproducibility. Grafts are something I don't > really understand yet, so I cannot answer this question. In particular, > does a grafted package get a different hash from a package built with > grafting disabled? Yes. A grafted package is a copy of the original package but with all references to /gnu/store/AAAAAA-=E2=80=A6 replaced with /gnu/store/BBBBBB-= =E2=80=A6. This is done recursively starting with the direct users of the replaced package and for all users of those users. -- Ricardo