Re: Audio CD Problems with Potato
On Sun, Jul 15, 2001 at 10:47:24PM -0700, Mark Wagnon wrote:
> On 07/16/01 07:20:47 +0200, Joost Kooij wrote:
> >
> > Better is: add your user to the cdrom group and chmod the device to that
> > group instead of disk.
>
> Thanks for the heads up. I know how to add a user to a group, but how
> does one remove a user from a group? I'm looking at the man page for
> usermod right now, and not really feeling too confident that it's
> going to do what I want. I don't want to remove myself from other
> groups, especially my default group.
Have a look at the attached mail that I send you.
HTH
--
Gerard
>From robi Mon Jun 18 22:33:14 2001
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Date: Mon, 18 Jun 2001 01:51:29 +0200
To: debian-user@lists.debian.org
Subject: Re: XMMS: root can / user can not listen Audio CDs
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References: <20010617181259.A348@c5lx> <01061720021302.00697@robdesk> <20010617220657.B285@c5lx> <y68lmmqivec.fsf@indiana.mit.edu>
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In-Reply-To: <y68lmmqivec.fsf@indiana.mit.edu>; from dmaze@debian.org on Sun, Jun 17, 2001 at 06:39:07PM -0400
From: Thomas Martin <t.h.martin@ieee.org>
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On Sun, Jun 17, 2001 at 06:39:07PM -0400, David Z Maze wrote:
> Thomas Martin <t.h.martin@ieee.org> writes:
> TM> Adding user to group DISK solved my problem.
>
> You almost definitely don't want to add users to group disk, since
> that gives them read/write access to raw devices for all of your disks
> (meaning that they can directly read the bits off the hard disk,
> meaning that they can effectively ignore filesystem permissions).
> Better to change the group owner of your cdrom device to 'cdrom' with
> chgrp, and then add users to group 'cdrom'.
>
> --
> David Maze dmaze@debian.org http://people.debian.org/~dmaze/
>
O.k. Gerard -- glad to help also a bit:
I removed user "tma" from group "disk" by
gpasswd -d tma disk
and I changed the owner of my cdrom-drive "/hdc"
(until now owner being "disk") by
chgrp -c cdrom /dev/hdc
to "cdrom" (adding -c for getting informed what happens)
User tma has been a member of group "cdrom" before so after these changes
XMMS now may be enjoyed by tma too without letting him destroy important data.
Thanks also to you David for your valuable advice.
This was my first time on this list and I am impressed by speed and quality of
answers.
--
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