From mboxrd@z Thu Jan 1 00:00:00 1970 From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=) Subject: bug#32018: Guixsd pull error on very old install Date: Fri, 13 Jul 2018 22:42:54 +0200 Message-ID: <877elyeuk1.fsf@gnu.org> References: <87o9fqj7s3.fsf@gnu.org> <20180713191256.r5ak5gbeo37fuej3@thebird.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:42207) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fe4v4-0008Bq-Ug for bug-guix@gnu.org; Fri, 13 Jul 2018 16:44:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fe4v4-0003Cu-0k for bug-guix@gnu.org; Fri, 13 Jul 2018 16:44:02 -0400 Received: from debbugs.gnu.org ([208.118.235.43]:51400) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fe4v3-0003Ch-SH for bug-guix@gnu.org; Fri, 13 Jul 2018 16:44:01 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1fe4v3-0006Hd-LZ for bug-guix@gnu.org; Fri, 13 Jul 2018 16:44:01 -0400 Sender: "Debbugs-submit" Resent-Message-ID: In-Reply-To: <20180713191256.r5ak5gbeo37fuej3@thebird.nl> (Pjotr Prins's message of "Fri, 13 Jul 2018 21:12:56 +0200") List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org Sender: "bug-Guix" To: Pjotr Prins Cc: 32018@debbugs.gnu.org Pjotr Prins skribis: > On Mon, Jul 02, 2018 at 11:39:40AM +0200, Ludovic Court=C3=A8s wrote: >> Hello, >>=20 >> swedebugia skribis: >>=20 >> > Trying to get an updated an old GuixSD installation via guix pull on a= pre 0.10 GuixSD returned an error message about gexp-modules not found. (d= etails can be provided if asked).=20 >>=20 >> Could you post the full backtrace? >>=20 >> > I suggest we either test pulling from old versions (and fix errors) or= make it clear in the manual that pulling from very old GuixSD (older than = 0.12?) is not supported. >>=20 >> Pulling from a very old Guix may not work. We try hard to keep things >> running, but the old =E2=80=98guix pull=E2=80=99 had defects, plus the f= ile >> build-aux/build-self.scm (which =E2=80=98guix pull=E2=80=99 runs) might = use features not >> found in very old versions. > > How about making sure that 'guix pull' works between major releases? > That should be reasonably easy to test. > > When there is a disruptive release for guix pull make sure the user > upgrades to the closest previous release first. I.e., multi-step > releases are less fraught with breakage. > > That way you get an incremental path to upgrade. And you only need to > test between major releases. I agree, yes. That=E2=80=99s a reasonable goal and one that should be easi= er to achieve now with the new =E2=80=98guix pull=E2=80=99. Note that swedebugia was talking of a pre-0.10 GuixSD, more than 2.5 years old, which represents a looong time for a pre-1.0 piece of software that evolves pretty fast. :-) Thank you, Ludo=E2=80=99.