Note: This procedure is based on a default installation of Red Hat Enterprise Linux ES 2.1. The file names, structures, and commands might be different for other versions of Red Hat Linux.
Complete the following steps to configure the general Linux parameters for SOL operation when using the Red Hat Enterprise Linux ES 2.1 operating system.
Note: Hardware flow control prevents character loss during communication over a serial connection. You must enable it when using a Linux operating system.
1.Add the following line to the end of the # Run gettys in standard runlevels section of the /etc/inittab file. This enables hardware flow control and enables users to log in through the SOL console.
7:2345:respawn:/sbin/agetty
2.Add the following line at the bottom of the /etc/securetty file to enable a user to log in as the root user through the SOL console:
ttyS1
LILO configuration: If you are using LILO, complete the following steps:
1.Complete the following steps to modify the /etc/lilo.conf file:
a.Add the following text to the end of the first default=linux line
b.Comment out the map=/boot/map line by adding a # at the beginning of this line.
c.Comment out the message=/boot/message line by adding a # at the beginning of this line.
d.Add the following line before the first image= line:
#This will allow you to only Monitor the OS boot via SOL
e.Add the following text to the end of the first label=linux line:
f.Add the following line to the first image= section. This enables SOL. append="console=ttyS0,19200n8 console=tty1"
g.Add the following lines between the two image= sections:
#This will allow you to Interact with the OS boot via SOL
root=/dev/hda6
append="console=tty1 console=ttyS0,19200n8 "
The following examples show the original content of the /etc/lilo.conf file and the content of this file after modification.
Chapter 2. Configuring the server 25