From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Subject: bug#35662: Really relocatable binaries crash with Permission denied
Date: Fri, 10 May 2019 23:50:19 +0200
Message-ID: <87o94ax9lw.fsf@gnu.org>
References: <20190509220136.tli7um2heocifrpq@pelzflorian.localdomain>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([209.51.188.92]:51866)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1hPDPz-0002EK-AR
	for bug-guix@gnu.org; Fri, 10 May 2019 17:51:04 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1hPDPy-0007t3-In
	for bug-guix@gnu.org; Fri, 10 May 2019 17:51:03 -0400
Received: from debbugs.gnu.org ([209.51.188.43]:54022)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
	id 1hPDPy-0007sz-FS
	for bug-guix@gnu.org; Fri, 10 May 2019 17:51:02 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1hPDPy-0005oJ-DR
	for bug-guix@gnu.org; Fri, 10 May 2019 17:51:02 -0400
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-Message-ID: <handler.35662.B35662.155752503022297@debbugs.gnu.org>
In-Reply-To: <20190509220136.tli7um2heocifrpq@pelzflorian.localdomain>
	(pelzflorian@pelzflorian.de's message of "Fri, 10 May 2019 00:01:36
	+0200")
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-guix/>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: "bug-Guix" <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
To: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
Cc: 35662@debbugs.gnu.org

Hello,

"pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de> skribis:

> The manual gives the following example of guix pack -RR:
>
>       guix pack -RR -S /mybin=3Dbin bash
>       tar xf pack.tar.gz
>       ./mybin/sh
>
> This fails on my university=E2=80=99s server for students which uses Linux
> container =E2=80=9CVMs=E2=80=9D with Ubuntu and has no user namespace sup=
port and Guix
> is not installed.  This single line is all output:
>
> $ ./mybin/sh
> sh: run.c:162: bind_mount: Unexpected error: Permission denied.

That suggests the wrapper chose the user namespace method (not PRoot),
but that didn=E2=80=99t quite work.

Could you post the output of:

  strace ./mybin/sh

?

TIA!

Ludo=E2=80=99.