[tlug] mkisofs errors

[Shimpei Yamashita <shimpei@example.com>]

Folks--
I'm getting the following error when I'm trying to make a CD-R backup
image of my home machine. How do I get around the error listed below?
I read the man pages for mkisofs, to no avail.

Command: 
#! /bin/sh
umask 077
mkisofs -V backup`date +%x` -l -J -r -o /tmp/backup`date +%x`.iso /home/shimpei /etc /var/log 

Output:
<many lines snipped>
mkisofs: Error: '/etc/GNUstep/Defaults/WindowMaker' and '/home/shimpei/GNUstep/Defaults/WindowMaker' have the same Rock Ridge name 'WindowMaker'.
mkisofs: Error: '/etc/GNUstep/Defaults/WMRootMenu' and '/home/shimpei/GNUstep/Defaults/WMRootMenu' have the same Rock Ridge name 'WMRootMenu'.
mkisofs: Error: '/etc/GNUstep/Defaults/WMState' and '/home/shimpei/GNUstep/Defaults/WMState' have the same Rock Ridge name 'WMState'.
mkisofs: Unable to sort directory /home/shimpei/GNUstep/Defaults

-- 
Shimpei Yamashita                               http://www.shimpei.org/
You can't have everything. Where would you put it?    -- Steve Wright