Redhat Setup for Serial Console
-------------------------------

! Cut and paste the next two lines to add general login support
! (and to allow root to log in over the console)
!
echo S0:2345:respawn:/sbin/agetty ttyS0 9600 vt102 >> /etc/inittab
echo ttyS0 >> /etc/securetty


! in /boot/grub/grub.conf add the next two lines (near the top)
!
serial --unit=0 --speed=9600
terminal --timeout=10 serial console

! add 'console=tty0 console=ttyS0,9600' to the end of every kernel line
! (example kernel lines next. Note you must do this when upgrading
! your kernels as well!  You should check this after running 'up2date'!)
!
kernel /vmlinuz-2.4.20-8smp ro root=LABEL=/ console=tty0 console=ttyS0,9600
kernel /vmlinuz-2.4.20-8 ro root=LABEL=/ console=tty0 console=ttyS0,9600

! comment out or delete the splashimage line (very important!)
#splashimage=(hd0,0)/grub/splash.xpm.gz


! example grub.conf:
#boot=/dev/hda
serial --unit=0 --speed=9600
terminal --timeout=10 serial console
default=0
timeout=10
#splashimage=(hd0,0)/grub/splash.xpm.gz
title Red Hat Linux (2.4.20-8smp)
root (hd0,0)
kernel /vmlinuz-2.4.20-8smp ro root=LABEL=/ console=tty0 console=ttyS0,9600
initrd /initrd-2.4.20-8smp.img
title Red Hat Linux-up (2.4.20-8)
root (hd0,0)
kernel /vmlinuz-2.4.20-8 ro root=LABEL=/ console=tty0 console=ttyS0,9600
initrd /initrd-2.4.20-8.img

! Make sure you have access to the console (serial or real) and
! reboot the system. When the system comes up the new hardware
! discovery utility (kudzu) will prompt you. Hit any key to enter
! Kudzu. When prompted about the serial console select 'Configure'