Problem mounting a USB flashdrive on Intrepid

[Leonard Chatagnier]

Nils,Thanks for the insight on the diskk group.  Appreciated

Leonard Chatagnier
lenc5570 at sbcglobal.net


--- On Thu, 12/4/08, Nils Kassube <kassube at gmx.net> wrote:

> From: Nils Kassube <kassube at gmx.net>
> Subject: Re: Problem mounting a USB flashdrive on Intrepid
> To: ubuntu-users at lists.ubuntu.com
> Date: Thursday, December 4, 2008, 12:42 PM
> Leonard Chatagnier wrote:
> > --- On Thu, 12/4/08, Nils Kassube
> <kassube at gmx.net> wrote:
> > > From: Nils Kassube <kassube at gmx.net>
> > > Subject: Re: Problem mounting a USB flashdrive on
> Intrepid
> > > To: ubuntu-users at lists.ubuntu.com
> > > Date: Thursday, December 4, 2008, 1:34 AM
> > >
> > > Leonard Chatagnier wrote:
> > > > Your message suggest your wife's user
> name needs
> > >
> > > to be added to the
> > >
> > > > disk group or some other appropriate group.
> > >
> > > The appropriate group definitely isn't
> > > "disk". A user in the disk group
> > > would have direct write access to the raw device
> nodes of
> > > all disks.
> > > A "normal" user in the disk group could
> easily
> > > overwrite entire disks.
> >
> > Ok. I see that group shows disk:x:6: without my uid on
> it. I thought I
> > had my uid or added it at one time but haven't
> looked at group since
> > installing intrepid. So, what is the appropriate group
> listing in this
> > case. I would like to know for my education. 
> 
> Meanwhile we have read already that the solution of the
> original problem 
> was an fstab entry and not the group membership. If you
> have a look at 
> the device nodes of a USB flash drive you can see the
> permissions are rw 
> for owner root and group disk. I suppose that was the
> reason why you 
> suggested the disk group. But the disk is mounted via HAL
> (sorry, I don't 
> know the details) and the user only gets permission to
> read/write to the 
> mounted file system, not to the raw device.
> 
> > In my case I wouldn't feel 
> > threatened as I'm user, admin, root whatever and
> responsible for what I
> > do. But that's my problem-:))
> 
> My original reply was merely sent to remind others that it
> is risky to 
> become member of the disk group. If you are member of the
> disk group you 
> just have to be very careful with every copy / move etc.
> command and make 
> sure you don't accidentally overwrite your disks. It is
> similar to 
> executing all those commands as root.
> 
> 
> Nils
> 
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