Re: Linux - CDR

[Wayne Gemmell <wayneg@ananzi.co.za>]

> >
> > -rws--x---    1 root     cdrecord      142 Jul 10 14:16
> > /usr/bin/cdrecord so I'm back where I started.
> > Also whats the s in the perms(above)? i.e. rws and how is it set?
>
> The "s" means that if executed, the cdrecord program will not run with
> your user id, but with the user id of the owner of cdrecord, which is
> root. Removing the suid bit (setting executable permissions ftom s to x
> as you did) results in the error message "cdrecord does not run with
> root privileges. To set it on a file, you can use chmod u+s. This can
> also be used for the group a file belongs to (but this is not necessary
> for cdrecord).
>
> On my system, I did not change any file permissions with K3b. On normal
> Debian systems it is  not necessary because they already have a group
> for CD writing. It is called "cdrom". Normal permissions for cdrecord
> are:
>
> -rws--x---    1 root     cdrom
>
> If you want the K3b setup with the cdrecord group, make sure you are
> member in that group because otherwise you cannot execute cdrecord. The
> same is true if you use the standard setup with the cdrom group. If you
> add your user id to a group, you will have to log out and log in again
> to apply the change.
>
> If your cdrecord executable still cannot be found afterwards, try to
> reconfigure the path K3b expects programs to be (something like
> Options/Programs in K3b).

Thanks for the help, for archive purposes my new perms are
-rwsr-x---    1 root     cdrecord      142 Jul 10 14:16 /usr/bin/cdrecord
I needed to add read access to the group and keep the suid bit.

Wayne