Users Guide

Table Of Contents
title Red Hat Linux Advanced Server-up (2.4.9-e.3)
root (hd0,00)
kernel /boot/vmlinuz-2.4.9-e.3 ro root=/dev/sda1
initrd /boot/initrd-2.4.9-e.3.img
When you edit the /etc/grub.conf file, follow these guidelines:
Disable GRUB's graphical interface and use the text-based interface. Else, the GRUB screen is not displayed in console
redirection. To disable the graphical interface, comment out the line starting with splashimage.
To start multiple GRUB options to start console sessions through the serial connection, add the following line to all
options:
console=ttyS1,57600
The example shows console=ttyS1,57600 added to only the first option.
Configuring Linux for server serial console redirection after boot
Edit the /etc/inittab file as follows:
Add a new line to configure agetty on the COM2 serial port:
co:2345:respawn:/sbin/agetty -h -L 57600 ttyS1
ansi
The following example shows the file with the new line.
#
# inittab This file describes how the INIT process
# should set up the system in a certain
# run-level.
#
# Author: Miquel van Smoorenburg
# Modified for RHS Linux by Marc Ewing and
# Donnie Barnes
#
# Default runlevel. The runlevels used by RHS are:
# 0 - halt (Do NOT set initdefault to this)
# 1 - Single user mode
# 2 - Multiuser, without NFS (The same as 3, if you
# do not have networking)
# 3 - Full multiuser mode
# 4 - unused
# 5 - X11
# 6 - reboot (Do NOT set initdefault to this)
#
id:3:initdefault:
# System initialization.
si::sysinit:/etc/rc.d/rc.sysinit
l0:0:wait:/etc/rc.d/rc 0
l1:1:wait:/etc/rc.d/rc 1
l2:2:wait:/etc/rc.d/rc 2
l3:3:wait:/etc/rc.d/rc 3
l4:4:wait:/etc/rc.d/rc 4
l5:5:wait:/etc/rc.d/rc 5
l6:6:wait:/etc/rc.d/rc 6
# Things to run in every runlevel.
ud::once:/sbin/update
# Trap CTRL-ALT-DELETE
ca::ctrlaltdel:/sbin/shutdown -t3 -r now
# When our UPS tells us power has failed, assume we
have a few
# minutes of power left. Schedule a shutdown for 2
minutes from now.
# This does, of course, assume you have power
installed and your
# UPS is connected and working correctly.
pf::powerfail:/sbin/shutdown -f -h +2 "Power Failure;
116
Configuring CMC to use Command Line consoles