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Date:      Sun, 04 Jan 2004 00:48:15 -0500
From:      Tom McLaughlin <tmclaugh@sdf.lonestar.org>
To:        Stacey Roberts <stacey@vickiandstacey.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: Mount /cdrom as non-root user - does this actually work for anyone?
Message-ID:  <1073195295.318.14.camel@compass>
In-Reply-To: <20040104011313.GJ6131@crom.vickiandstacey.com>
References:  <20040104005352.GI6131@crom.vickiandstacey.com> <20040104005929.GA70684@madras.dyndns.org> <20040104011313.GJ6131@crom.vickiandstacey.com>

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On Sat, 2004-01-03 at 20:13, Stacey Roberts wrote:
> Hello,
>      Thanks for the reply..,
> 
> ----- Original Message -----
> From: "Gautam Gopalakrishnan <ggop@madras.dyndns.org>"
> To: To Stacey Roberts
> Date: Sun, 04 Jan, 2004 00:59 GMT
> Subject: Re: Mount /cdrom as non-root user - does this actually work for anyone?
> 
> > On Sun, Jan 04, 2004 at 12:53:52AM +0000, Stacey Roberts wrote:
> > > Hello,
> > > As root I can mount and read the CD fine.., checking for non-root user:
> > > exit
> > > ~ $ mount /cdrom
> > > cd9660: /dev/acd0c: Operation not permitted
> > > ~ $ mount -t cd9660 /dev/acd0c ~/cdrom
> > > cd9660: /dev/acd0c: Operation not permitted
> > > ~ $
> > > 
> > > Attempting to mount to mount-point in user home dir:
> > > ~ $ cd ~
> > > ~ $ pwd
> > > /home/stacey
> > > ~ $ ls -ltra cdrom
> > > total 6
> > > drwxr-xr-x 2 stacey stacey 512 Jan 3 23:50 ./
> > > drwxr-xr-x 31 stacey stacey 2560 Jan 3 23:50 ../
> > > ~ $ mount -t cd9660 /dev/acd0c ~/cdrom
> > > cd9660: /dev/acd0c: Operation not permitted
> > > ~ $
> > 
> > chmod +s /sbin/umount /sbin/mount
> > 
> > works fine for me (without any other changes necessary). Don't know
> > if it's the recommended procedure though.
> > 
> 
> Nor I, to be honest.., I'm not sure about setting the suid bit on mount.., Given that the HandBook provides what I thought would have been straight-forward instructions on what (presumably) is I hoped is a simple procedure.., I'd not want to start making undocumented config changes.
> 
> Thanks all the same for taking the time to respond.
> 
> Regards,
> 
> Stacey
> 
> > Gautam
> > 

Stacey, what are permissions of /dev/acd0c?  The handbook example
changes the permissions of a SCSI cdrom.  I made the mistake of not
noticing this when I first tried to do make my cdrom user mountable.

Tom



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