<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2745.2800" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Hello,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have created a backup shell
script which exports a database, gathers files, creates a CD image file and
then writes it to a CD.</FONT></DIV>
<DIV><FONT face=Arial size=2>The shell script is then scheduled to
run during the night. There are a pair of, logically
identical, systems one a Dell tower and the other a Dell rack mountable
servers. (Fedora Core 3 is used on both systems.) The shell script works
perfectly on the tower system but on the rack mounted machine the CD writing
fails. The image to be copied is only about 360Mb, I have used different
manufacturers CDs but the problem persists. I changed the CD drive but the
problem persists.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have taken an image copy of the offending system
and placed it my test system with the same type of CD writer which is in the
rack mountable system.</FONT></DIV>
<DIV><FONT face=Arial size=2>To simplify the problem I created a shell
script which just contains the line which writes to the CD. When
I run the script in a terminal window it works. When I run it as a cron job
it fails. The led on the CD writer flashes for a number of minutes and then goes
on. The CD cannot be unmounted and the only way to extract the CD is to
either power the system down and back up or to use a paper clip to release the
CD drawer. (As an aside small image files can be written to the CD using a cron
job.)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Any suggestions as to what might be causing the
problem or how I could find out more information.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks, Brendan</FONT> </DIV></BODY></HTML>