using growisofs in a PHP/HTML page

[Pedro Quaresma <pedro@xxxxxxxxx>]

Hi

I'm trying to write a "make a backup, page". I do the backup of all
the databases (into /tmp/CopiaSeguranca), I do the copying of some
directories to /tmp/CopiaSeguranca, and then I want to write a DVD of
all the files in /tmp/CopiaSeguranca.

Everything is ok, except for the last step.

(...)
$saida=system("growisofs -Z /dev/hda -R -J -input-charset 
iso8859-1 /tmp/CopiaSeguranca/",$return_value);
echo "<p>--- $saida --- </p>";
echo "<p>--- $return_value --- </p>";
if(!$return_value){
  echo "<p>Success</p>";
  echo"<a href=../index.html> return </a></p>";
}
else
echo "<p>Error.</p>";
(...)


The "growisofs" command does nothing... if I do the same command in a
bash window, in the command line everything works fine, I think that
the permissions are ok, I put the www-data user in the "plugdev" and
"cdrom" groups...

Is it possible to use growisofs inside PHP?

???

Thanks.
-- 
    At\'e breve

Professor Auxiliar Pedro Quaresma
Departamento de Matem\'atica
Faculdade de Ci\^encias e Tecnologia
Universidade de Coimbra
P-3001-454 COIMBRA, PORTUGAL
correio-e: pedro@xxxxxxxxx
p\'agina: http://www.mat.uc.pt/~pedro/
telef: +351 239 791 181; fax: +351 239 832 568

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