.
Greetings again, Jeffery.

I offer the following only if you feel comfortable making changes to your Knoppix.

You might edit /etc/rc.local with the command
Code:
sudo leafpad /etc/rc.local
to include a new single command line just before the 'exit 0' line, as follows:
Code:
#!/bin/bash
#
# rc.local
#
# Start local services after hardware detection

SERVICES="cups"

for i in $SERVICES; do
 [ -x /etc/init.d/"$i" ] && /etc/init.d/"$i" start >/dev/null 2>&1
done

# PS1 re-definition command here.

exit 0
If you were to save and reboot with this /etc/rc.local, there should be no changes in your system.
If you use sudo leafpad /etc/rc.local to remove the initial '#' ahead of the command, and re-save
this changed /etc/rc.local, then I would expect this to change your PS1 for the remainder of this boot
and for subsequent re-boots until or unless your put the initial '#' back and reboot.

It's really not essential here, but it's good practice always to save an original configuration file
just in case somehow you goof up editing the original. With /etc/rc.local, since its permissions
are root:root, this means doing
Code:
 sudo cp /etc/rc.local /etc/rc.local.orig
or something similar.