From mboxrd@z Thu Jan 1 00:00:00 1970
Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org)
by finch.gentoo.org with esmtp (Exim 4.60)
(envelope-from <gentoo-user+bounces-138545-garchives=archives.gentoo.org@lists.gentoo.org>)
id 1SX1sE-0007UK-IL
for garchives@archives.gentoo.org; Wed, 23 May 2012 03:04:31 +0000
Received: from pigeon.gentoo.org (localhost [127.0.0.1])
by pigeon.gentoo.org (Postfix) with SMTP id 2C015E0495
for <garchives@archives.gentoo.org>; Wed, 23 May 2012 03:04:30 +0000 (UTC)
Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181])
by pigeon.gentoo.org (Postfix) with ESMTP id 4141BE0507
for <gentoo-user@lists.gentoo.org>; Wed, 23 May 2012 00:45:53 +0000 (UTC)
Received: by wibhn14 with SMTP id hn14so3677649wib.10
for <gentoo-user@lists.gentoo.org>; Tue, 22 May 2012 17:45:53 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
d=gmail.com; s=20120113;
h=date:from:to:subject:message-id:in-reply-to:references:organization
:x-mailer:mime-version:content-type:content-transfer-encoding;
bh=HqDKBCEduxNnYNJnrVptDcGgYOHgcYEA478WK81HPCc=;
b=JFxNQXO6kaCXTD8wNMBZAHSizvJJ8x2SMKiM4BqlXc+9EIhvHrQS0YeDe3dh/7WmaE
eV16L/ZnwBGQmtP/73Ed/mCsLIey1Gg0Eco/dS8s+rxrgMEApUbpRTyr6m9uROsBqsTX
Y9MAdweKVXMeMAJ1AsgIOXl45BYEsYdL4iGoAhObTd8RfQVZXRDtbtMD0nX3ONV9jFkV
lZeaS5+naCTOsBEAsWYD6Un8pjyjMbOiRIH0AN7RNyX/r9cr/ONWuE1E0hW1Z5/odDb+
6t7ZNSNL8FBTM0oYGbY6ZSB0JO0Wgor8Pqz68KY4lbzAlE05pAEx6mam/U+l2jY586oe
qMvw==
Received: by 10.180.82.5 with SMTP id e5mr39948960wiy.0.1337733953391;
Tue, 22 May 2012 17:45:53 -0700 (PDT)
Received: from khamul.example.com (196-215-114-166.dynamic.isadsl.co.za. [196.215.114.166])
by mx.google.com with ESMTPS id f19sm57522129wiw.11.2012.05.22.17.45.50
(version=SSLv3 cipher=OTHER);
Tue, 22 May 2012 17:45:52 -0700 (PDT)
Date: Wed, 23 May 2012 02:42:46 +0200
From: Alan McKinnon <alan.mckinnon@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] OT: mount so that other users can write to
mounted dir?
Message-ID: <20120523024246.539347a1@khamul.example.com>
In-Reply-To: <20120523002603.GA4469@waltdnes.org>
References: <20120523002603.GA4469@waltdnes.org>
Organization: Internet Solutions
X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.10; x86_64-pc-linux-gnu)
Precedence: bulk
List-Post: <mailto:gentoo-user@lists.gentoo.org>
List-Help: <mailto:gentoo-user+help@lists.gentoo.org>
List-Unsubscribe: <mailto:gentoo-user+unsubscribe@lists.gentoo.org>
List-Subscribe: <mailto:gentoo-user+subscribe@lists.gentoo.org>
List-Id: Gentoo Linux mail <gentoo-user.gentoo.org>
X-BeenThere: gentoo-user@lists.gentoo.org
Reply-to: gentoo-user@lists.gentoo.org
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-Archives-Salt: 4cb27254-6f59-48c0-a5cf-1638cfc17c1b
X-Archives-Hash: 995de730af54be0b83c5e3e4ed81ad71
On Tue, 22 May 2012 20:26:03 -0400
"Walter Dnes" <waltdnes@waltdnes.org> wrote:
> I'm not really a fan of automount, but I understand that lots of
> people are. I'm trying to get it fully functional under mdev, and
> then do a write-up on the wiki page. A Google search turns up lots of
> examples of code. However, the examples are for embedded devices, and
> they assume the only user is root. I've got the automounting and
> autounmounting working. Everybody can read the mounted USB stick, but
> only root can write. I've tried pmount with the umask option, but it
> doesn't help. Assume the scrpt gets passed MDEV="sdb1"
>
> #
> # Create the directory in /media
> mkdir -p /media/${MDEV}
> #
> # Change permissions to allow read+write by all
> chmod 777 /media/${MDEV}
> #
> # Mount the directory in /media
> pmount --noatime --umask 000 /dev/${MDEV}
>
> But after the mount...
> user2@aa1 /media $ ll
> total 3
> drwxr-xr-x 3 root root 1024 May 22 19:02 .
> drwxr-xr-x 19 root root 1024 May 21 20:41 ..
> drwxr-xr-x 5 root root 1024 May 16 01:42 sdb1
>
> Every directory and file belongs to user:group root:root. On the
> USB stick all directories are 755 and files are 744. As a
> heavy-handed ugly hack, I could...
>
> chgrp -R users /media/${MDEV}
> chmod -R g+w /media/${MDEV}
>
> to a USB stick. I obviously don't wnt to do that on the external USB
> drive that I rsync my system to every few weeks. Any ideas? And oh
> yes, I do realize I'm trying to re-invent the wheel. The old one has
> a broken udev :(
>
What filesystem is on that stick?
For vfat and ntfs what you are truing should work.
For Unix file systems (ext*, reiser, etc), it will not work. You cannot
override owners and permissions with the mount command on those.
--
Alan McKinnnon
alan.mckinnon@gmail.com