From owner-freebsd-questions  Tue Aug 26 11:12:50 1997
Return-Path: <owner-freebsd-questions>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id LAA27059
          for questions-outgoing; Tue, 26 Aug 1997 11:12:50 -0700 (PDT)
Received: from whqvax.picker.com (whqvax.picker.com [144.54.1.1])
          by hub.freebsd.org (8.8.7/8.8.7) with SMTP id LAA27051
          for <freebsd-questions@FreeBSD.ORG>; Tue, 26 Aug 1997 11:12:43 -0700 (PDT)
Received: from ct.picker.com by whqvax.picker.com with SMTP;
          Tue, 26 Aug 1997 12:10:55 -0400 (EDT)
Received: from elmer.ct.picker.com ([144.54.57.34]) by ct.picker.com (4.1/SMI-4.1)
	id AA00560; Tue, 26 Aug 97 12:10:52 EDT
Received: by elmer.ct.picker.com (SMI-8.6/SMI-SVR4)
	id MAA11876; Tue, 26 Aug 1997 12:07:41 -0400
Message-Id: <19970826120741.11943@ct.picker.com>
Date: Tue, 26 Aug 1997 12:07:41 -0400
From: Randall Hopper <rhh@ct.picker.com>
To: Parrish Myers <parrish@engr.arizona.edu>
Cc: Doug White <dwhite@resnet.uoregon.edu>, freebsd-questions@FreeBSD.ORG
Subject: Re: Zip Drive
References: <Pine.OSF.3.95.970818163138.5547A-100000@engr.arizona.edu> <Pine.BSF.3.96.970825223840.3179U-100000@localhost> <19970826104548.11175@ct.picker.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Mailer: Mutt 0.81
In-Reply-To: <19970826104548.11175@ct.picker.com>; from Randall Hopper on Tue, Aug 26, 1997 at 10:45:48AM -0400
Sender: owner-freebsd-questions@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

Randall Hopper:
 |notation.  I put my ZIP UFSs on slice 1.  Makes it real easy to write a
 |safe, generic setuid "mountzip" script:
 |
 |  mount -t msdos /dev/sd0s4 /zip || mount /dev/sd0s1 /zip
 |
 |"df /zip" tells you right off what FS type you've got in case you forget.

I have to correct myself.  This is the incantation I started with, and
works fine if you're root.  But I had to change it to:

    mount_msdos /dev/sd0s4 /zip || mount /dev/sd0s1 /zip

because "mount -t msdos" seems to lose root when run in a setuid-root
script in the process of handing off to "mount_msdos".  This seems to be a
bug.  Anyway, running mount_msdos directly (as above) works in a
setuid-root shell script.

Randall