From owner-freebsd-questions@FreeBSD.ORG Tue Dec 18 22:14:10 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 28CD489A for ; Tue, 18 Dec 2012 22:14:10 +0000 (UTC) (envelope-from freebsd-questions-local@be-well.ilk.org) Received: from asbnvacz-mailrelay01.megapath.net (asbnvacz-mailrelay01.megapath.net [207.145.128.243]) by mx1.freebsd.org (Postfix) with ESMTP id D34E68FC0A for ; Tue, 18 Dec 2012 22:14:09 +0000 (UTC) Received: from mail3.sea5.speakeasy.net (mail3.sea5.speakeasy.net [69.17.117.42]) by asbnvacz-mailrelay01.megapath.net (Postfix) with ESMTP id A7C71A72DE5 for ; Tue, 18 Dec 2012 17:14:02 -0500 (EST) Received: (qmail 21878 invoked from network); 18 Dec 2012 22:14:02 -0000 Received: by simscan 1.4.0 ppid: 7287, pid: 10080, t: 0.1935s scanners: clamav: 0.88.2/m:52/d:10739 Received: from unknown (HELO be-well.ilk.org) ([66.92.78.145]) (envelope-sender ) by mail3.sea5.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 18 Dec 2012 22:14:02 -0000 Received: from lowell-desk.lan (lowell-desk.lan [172.30.250.8]) by be-well.ilk.org (Postfix) with ESMTP id 043C033C23; Tue, 18 Dec 2012 17:13:55 -0500 (EST) Received: by lowell-desk.lan (Postfix, from userid 1147) id 2308E39855; Tue, 18 Dec 2012 17:13:55 -0500 (EST) From: Lowell Gilbert To: David Demelier Subject: Re: svn revision in uname References: <20121215194427.GA19347@baot.se> <44txrnqbav.fsf@lowell-desk.lan> Date: Tue, 18 Dec 2012 17:13:55 -0500 In-Reply-To: (David Demelier's message of "Mon, 17 Dec 2012 14:13:11 +0100") Message-ID: <441uent3do.fsf@lowell-desk.lan> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain Cc: "C. P. Ghost" , freebsd-questions@freebsd.org, "Anders N." X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 18 Dec 2012 22:14:10 -0000 David Demelier writes: > > 2012/12/15 Lowell Gilbert > >> "Anders N." writes: >> >> > Hi. I've noticed in my "uname -a" on 9.1-RELEASE there is "r243826." >> > This is on a system that upgraded from 9.1-RC3 using freebsd-update >> > (binary). On another system, upgraded from 9.0-RELEASE via >> > freebsd-update (source), there is nothing at all and uname -a looks >> > normal. Two other people I asked have r243825 (installed from ISO) and >> > r243872 (upgraded from svn). >> > >> > They're all 9.1-RELEASE, shouldn't they be the same, final version? >> >> As I understand it, the revision ID refers to the whole repository, not >> just a branch. So if you do your own svn checkout tomorrow, you'll get >> yet another revision number, even though the files will (probably) be >> completely identical to what you checked out yesterday -- ongoing >> commits to HEAD will keep kicking the revision number up. >> >> There is work going on to make system builds completely, bit-for-bit, >> repeatable, but that will presumably mean getting rid of this revision >> number information, not making it consistent. > I hope it will be removed soon, it pollutes the uname -a output. It's easy enough to add a stage in the kernel build to remove it if you don't like it, but in most source-update environments it's a very valuable piece of information. Even if a reproduceable-build infrastructure is put in place, it would have to be optional because this information is necessary in heterogeneous environments. I don't know that anyone's working on it the moment -- I *thought* I'd read something about it recently, but I can't find any reference to such an effort this year.