From mboxrd@z Thu Jan 1 00:00:00 1970 From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=) Subject: bug#28445: Cannot boot GuixSD after system reconfigure Date: Fri, 22 Sep 2017 18:41:55 +0200 Message-ID: <87lgl6ptws.fsf__36010.3722582155$1506098749$gmane$org@gnu.org> References: <87bmm3kh47.fsf@gnu.org> <87fubf4s77.fsf@gnu.org> <87vakbmvgb.fsf@gnu.org> <87a81msud8.fsf@gnu.org> <20170922162339.65cf2b79@scratchpost.org> 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]:45252) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dvR2h-0005Uz-0z for bug-guix@gnu.org; Fri, 22 Sep 2017 12:43:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dvR2c-0005sV-MY for bug-guix@gnu.org; Fri, 22 Sep 2017 12:43:07 -0400 Received: from debbugs.gnu.org ([208.118.235.43]:44428) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dvR2c-0005s6-JB for bug-guix@gnu.org; Fri, 22 Sep 2017 12:43:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dvR2c-0000Ab-CM for bug-guix@gnu.org; Fri, 22 Sep 2017 12:43:02 -0400 Sender: "Debbugs-submit" Resent-Message-ID: In-Reply-To: <20170922162339.65cf2b79@scratchpost.org> (Danny Milosavljevic's message of "Fri, 22 Sep 2017 16:23:39 +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: Danny Milosavljevic Cc: 28445@debbugs.gnu.org, help-guix Danny Milosavljevic skribis: > On Fri, 22 Sep 2017 16:03:47 +0200 > ludo@gnu.org (Ludovic Court=C3=A8s) wrote: > >> However, there=E2=80=99s one thing I=E2=80=99d like to double-check with= Danny, which is >> the word order. With this patch, I have: >>=20 >> (fat32-uuid->string (string->fat32-uuid "aabb-ccdd")) >> $7 =3D "CCDD-AABB" >>=20 >> Danny: are you sure the most-significant 16-bit word comes last? > > See https://github.com/karelzak/util-linux/blob/master/libblkid/src/super= blocks/vfat.c#L48 > > blkid_probe_sprintf_uuid(pr, vol_serno, 4, "%02X%02X-%02X%02X", > vol_serno[3], vol_serno[2], vol_serno[1], vol_serno[0]); I see, thanks! Roel, with commit 8a7d81a5e23c4d59fbabf2550db32d4ba5572e4b, you should be able to write: (uuid "abcd-1234" 'fat32) in your config, and it should work. Let me know if it doesn=E2=80=99t. :-) Ludo=E2=80=99.