Ok, I tried it logged in as my normal user, but in Konsole as root, and here's what I got -
root@localhost ~]# umount -a
umount: /home: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(

or fuser(1))
umount: /: device is busy.
(In some cases useful info about processes that use
the device is found by lsof(

or fuser(1))
[root@localhost ~]# mylivecd 2ndLiveCD.iso
mylivecd, version 0.9.4,
http://pclinuxos.com/Copyright (C) 2010, Texstar <texstar at gmail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
Disabling Services not needed on the LiveCD
running: /sbin/chkconfig --list
running: chkconfig --del atd
running: /sbin/chkconfig --list
running: chkconfig --del crond
running: /sbin/chkconfig --list
running: chkconfig --del syslog
Warning: syslog is needed by script(s) in runlevel 2: messagebus(start) messagebus(stop) shorewall(start)
Warning: syslog is needed by script(s) in runlevel 3: messagebus(start) messagebus(stop) nscd(start) shorewall(start)
Warning: syslog is needed by script(s) in runlevel 4: messagebus(start) messagebus(stop) nscd(start) shorewall(start)
Warning: syslog is needed by script(s) in runlevel 5: messagebus(start) messagebus(stop) nscd(start) shorewall(start)
Warning: syslog is needed by script(s) in runlevel 7: messagebus(start) messagebus(stop)
running: /sbin/chkconfig --list
running: chkconfig --del kheader
running: /sbin/chkconfig --list
running: chkconfig --del xinetd
Creating initrd: [100.00% 00:00:03/00:00:03]
Setting filesystem parameters: [100.00% 00:00:09/00:00:09]
Creating compressed image: [100.00% 00:51:29/00:51:29]
Creating isolinux boot: [100.00% 00:00:00/00:00:00]
Creating final iso: [100.00% 00:00:00/00:00:00]
Restoring Services on the installed system
running: chkconfig --add atd
running: chkconfig --add crond
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
Warning: syslog is needed by crond in runlevel 2
Warning: syslog is needed by crond in runlevel 3
Warning: syslog is needed by crond in runlevel 4
Warning: syslog is needed by crond in runlevel 5
running: chkconfig --add syslog
running: chkconfig --add kheader
running: chkconfig --add xinetd
ls: cannot access 2ndLiveCD.iso: No such file or directory
Argument "" isn't numeric in division (/) at /usr/sbin/mylivecd line 244.
Created '2ndLiveCD.iso' (0,000 bytes) in 00:51:42
It looks like it didn't create the iso file, although it stated it did.