Hi William,
Supposing you will use ttyS0 (a.k.a COM1) port @ 9600 bps, 8 bits, no parity, 1 stop, to hook up the serial console, you may follow these directons:
Place the following lines in /etc/lilo.conf
serial=0,96008n
append="console=tty0 console=ttyS0,9600n8"
execute lilo
> lilo
Change to the custom templates directory
>cd /etc/ e-smith/templates-custom/etc/inittab
create a file named 85serialconsole
>pico 85serialconsole
with the following content
------------------------------------------------
# Serial console terminal
4:123457:respawn:/sbin/agetty -h -L 9600 /dev/ttyS0 vt100
#------------------------------------------------
expand this template
>/sbin/e-smith/expand-template /etc/inittab
load the new inittab
>telinit q
Hook up your serial console and reboot!
I haven't been able to login as root through the serial console, but admin works fine and so does a user created by me called rpmmaker.
How knows why the root account is not working through the serial console?
Good luck and enjoy.