From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: Installer, ISO9660, etc.
Date: Mon, 10 Jul 2017 23:02:36 +0200
Message-ID: <8737a43t03.fsf@gnu.org>
References: <20170627221608.A23B52013B@smtp.hushmail.com>
	<20170628154943.36021286@scratchpost.org>
	<20170705152024.4dfde1c5@scratchpost.org> <87mv8gbhur.fsf_-_@gnu.org>
	<20170707181315.2f998f1d@scratchpost.org> <877ezhv0dt.fsf@gnu.org>
	<20170710154118.2c0262eb@scratchpost.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:39396)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1dUfpM-0003C2-Ij
	for guix-devel@gnu.org; Mon, 10 Jul 2017 17:02:45 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1dUfpH-0002Pk-Jl
	for guix-devel@gnu.org; Mon, 10 Jul 2017 17:02:44 -0400
In-Reply-To: <20170710154118.2c0262eb@scratchpost.org> (Danny Milosavljevic's
	message of "Mon, 10 Jul 2017 15:41:18 +0200")
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel/>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: "Guix-devel" <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
To: Danny Milosavljevic <dannym@scratchpost.org>
Cc: guix-devel@gnu.org

Danny Milosavljevic <dannym@scratchpost.org> skribis:

> Aha!
>
> I finally found why I couldn't use the iso9660 image on an usb stick.
>
> Fix:
>
> diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm
> index b6930497d..7f2c5dcb0 100644
> --- a/gnu/build/file-systems.scm
> +++ b/gnu/build/file-systems.scm
> @@ -398,7 +398,7 @@ not valid header was found."
>                (match (string-tokenize line)
>                  (((=3D string->number major) (=3D string->number minor)
>                    blocks name)
> -                 (if (partition? name major minor)
> +                 (if #t ;(partition? name major minor)
>                       (loop (cons name parts))
>                       (loop parts))))))))))
>
> Then it works fine on CD, on USB stick, whereever.
>
> Is there a reason why (disk-partitions) second-guesses the Linux kernel a=
nd filters out some entries from /proc/partitions ?

It has this:

  (define (partition? name major minor)
    ;; Select device names that end in a digit, like libblkid's 'probe_all'
    ;; function does.  Checking for "/sys/dev/block/MAJOR:MINOR/partition"
    ;; doesn't work for partitions coming from mapped devices.
    (and (char-set-contains? char-set:digit (last-character name))
         (> major 2)))                      ;ignore RAM disks and floppy di=
sks

What=E2=80=99s the /dev name in your case?

Ludo=E2=80=99.