CD permissions

Cyber Source peter at thecybersource.com
Thu Sep 18 19:31:40 EDT 2003


You should try the fstab setup as I have it, then try and use cdr-bq
with it. I have never had a problem being a user.
On Thu, 2003-09-18 at 18:28, JB wrote:

> I changed my fstab setting from owner to users and ro
> to rw but I still have to log into root to use the CD
> burner. I am currently on a windows box and when I try
> to download that cdrbq I get a 15k download. I am
> using  xcdroast which seems to work fine except that I
> have to log in as root to use it. I found this bit of
> information in the HOWTO's about this subject.
> 
> How can this be set up so that a user can burn CDs
> instead of always being root?
> You can add the setuid-bit to the cdrecord-executable.
> However, this might be a security risk. Just setting
> the permissions on the device files does not help as
> cdrecord issues privileged commands via the SCSI
> generic interfaces.
> which cdrecord
> chown root.root /usr/bin/cdrecord
> chmod 4111 /usr/bin/cdrecord
> 
> I wonder if I should change my fstab back or if this
> chown, chmod is the next step?
> 
> JB <mesimpleton at yahoo.com> wrote:
> > My fstab is different and I see you must have
> > changed
> > it to users. Is that all that needs to be done? Also
> > my fstab has ro instead of rw. I would imagine that
> > is
> > read write? Here is what I have.
> > /dev/cdrom  /mnt/cdrom  udf,iso9660
> > noauto,owner,kudzu,ro 0 0
> > /dev/fd0  /mnt/floppy  auto  noauto,owner,kudzu 0 0
> > Looks like my floppy is root only too although I
> > haven't actually tried it out to see for sure.
> > If I just change owner to user and maybe ro to rw,
> > that should do the trick. I also wonder why the
> > howto
> > info I got earlier is a completely different way
> > than
> > an fstab edit? Thanks.
> > 
> > --- Cyber Source <peter at thecybersource.com> wrote:
> > > Here is a printout of my /etc/fstab, note the
> > cdrom
> > > line. After you fix
> > > that you can download a file called cdrbq, it
> > works
> > > great. Here is a
> > > link to it.
> > >
> >
> http://sourceforge.net/project/showfiles.php?group_id=12071&release_id=176647
> > > LABEL=/                 /                      
> > ext3
> > >    defaults       
> > > 1 1
> > > LABEL=/boot             /boot                  
> > ext3
> > >    defaults       
> > > 1 2
> > > none                    /dev/pts               
> > > devpts  gid=5,mode=620 
> > > 0 0
> > > none                    /proc                  
> > proc
> > >    defaults       
> > > 0 0
> > > none                    /dev/shm               
> > > tmpfs   defaults       
> > > 0 0
> > > /dev/sda3               swap                   
> > swap
> > >    defaults       
> > > 0 0
> > > /dev/cdrom              /mnt/cdrom             
> > > iso9660
> > > noauto,users,rw,kudzu,user,unhide 0 0
> > > /dev/fd0                /mnt/floppy            
> > auto
> > >   
> > > noauto,users,rw,kudzu 0
> > > 0
> > > /dev/hdb1               /mnt/windows           
> > vfat
> > >    user,rw,umask=0
> > > 0 0
> > > 
> > > 
> > > On Wed, 2003-09-17 at 22:57, JB wrote:
> > > 
> > > > Thanks for all the help with setting
> > permissions.
> > > I
> > > > ended up goofing it all up, but that was my
> > fault.
> > > I
> > > > did want to keep each user account separate and
> > > just
> > > > wanted the folder of pictures to be shared. I
> > now
> > > know
> > > > that I need to make a generic user which others
> > > can
> > > > share resources, along with samba. I also know I
> > > need
> > > > to read up on chmod and chown commands. I read
> > > some
> > > > today and I almost understand the big picture
> > > about
> > > > groups, users, chown and chmod. I appreciate all
> > > the
> > > > help and I think I have enough information to
> > get
> > > the
> > > > job done. I'll attempt it again in the near
> > future
> > > > after I digest some more reading in those areas.
> > > > I also want to let all users have use of the CD
> > > burner
> > > > but I think that permission is set in fstab, if
> > > I'm
> > > > not mistaken? I remember reading it somewhere,
> > but
> > > for
> > > > the life of me I haven't found that info yet. I
> > > think
> > > > it was in a howto, I just haven't dug very deep
> > to
> > > > find that info yet. I think it is defaulted to
> > > only
> > > > root access for some type of security reason? If
> > > > someone wants to touch bases on that subject, it
> > > would
> > > > save me some hair pulling, hehehe.
> > > > Thanks again,
> > > > John
> > > 
> > > -- 
> > > Cyber Source <peter at thecybersource.com>
> > > 
> > 

-- 
Cyber Source <peter at thecybersource.com>
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