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Preparation for Operation
This procedure is based on a default installation of Red Hat Enterprise
i
Linux ES 2.1. The file names, structures, and commands might be
different for other versions of Red Hat Linux.
To configure the general Linux parameters for SOL operation when using the
Red Hat Enterprise Linux ES 2.1 operating system, complete the following
steps.
Hardware flow control prevents character loss during communication
i
over a serial connection. You must enable it when using a Linux operating
system.
Ê 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 -h ttyS1 19200 vt102
Ê 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:
Ê Modify the /etc/lilo.conf file:
Ê Add the following text to the end of the first default=linux line:
-Monitor
Ê Comment out the map=/boot/map line by adding a # at the beginning
of the line.
Ê Comment out the message=/boot/message line by adding a # at the
beginning of the line.
Ê Add the following line before the first image= line:
# This will allow you to only Monitor the OS boot via SOL
Ê Add the following text to the end of the first label=linux line:
-Monitor
Ê Add the following line to the first image= section. This enables
SOL.
append="console=ttyS1,19200n8 console=tty1"
Ê Add the following lines between the two image= sections:
# This will allow you to Interact with the OS boot via SOL
image=/boot/vmlinuz-2.4.9-e.12smp
label=linux-Interact
U41621-J-Z156-1-76
Configuring the Server
75
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