Re: [MLUG] cdrecord

[Jonathan King <EMAIL:PROTECTED>]

On Thu, 13 Jun 2002, Blake C. Thornton wrote:

> > I just installed cdrecord and mkisofs on my FreeBSD system so that I can
> > record onto CD's.  But I find the man pages (and the cdrecord web page)
> > somewhat cryptic, and I was wondering if anyone knows some user friendly
> > guides to recording CD's under Linux/FreeBSD.

If it makes you feel better, I found this really very cryptic.  What 
I ended up with was similar to the below, but note:

> Command line burning - Data 

[snip]
 
> or just: 
> 
>    mkisofs -f -R -r -l -J -o dest.iso src
> 
>         -f
>         -J makes it more windows compatible
>         -r -R makes the ownership of files to stay same?
>         -l follow symbolic links

-r is a bit more complicated than this.  It actually changes
modes/owners.  Specifically, it makes the uid/gid of the files
burned 0, makes them readable by everybody and clears all of the
"write" bits.  The last one sounds plausible (hey, you're writing to
something that will be mounted as read-only), but if you're backing
things up (or doing something where permissions should not be played 
with) this can have some disconcerting effects when you try to copy
stuff back.  So be aware, and remember that tar can be your friend. 
:-)

> 5- Writing an ISO to a CD-ROM using cdrecord
> 
>             cdrecord -v -pad speed=1 dev=0,0,0 src.iso 
> or
>             cdrecord -v -pad speed=1 dev=1,0,0 src.iso 
> 
> use cdrecord -scanbus to find the correct device numbers

The last thing had me confused for quite a while, for some reason (I
have no idea why you need to use raw device numbers here). Also note
that you might well be able to record at a higher speed, but before
you make coasters, you might want to try out higher speeds by using
cdrecord with the "-dummy" flag.  This will report errors and
especially buffer empty errors (you're going too fast).

jking


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