Mount /cdrom as non-root user - does this actually work for
anyone?
Tom McLaughlin
tmclaugh at sdf.lonestar.org
Sat Jan 3 21:46:23 PST 2004
On Sat, 2004-01-03 at 20:13, Stacey Roberts wrote:
> Hello,
> Thanks for the reply..,
>
> ----- Original Message -----
> From: "Gautam Gopalakrishnan <ggop at 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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