Dell Drac 5 User Guide

Advanced Configuration of the DRAC 551
Configuring the BIOS Setup Program for a Serial Connection on the 
Managed System
Perform the following steps to configure your BIOS Setup program to 
redirect output to a serial port.
 NOTE: You must configure the System Setup program in conjunction with the 
connect com2 command.
1Turn on or restart your system.
2Press  immediately after you see the following message:
 = System Setup
3
Scroll down and select Serial Communication by pressing .
4Set the Serial...

52Advanced Configuration of the DRAC 5
To enable the RAC serial terminal interface, set the cfgSerialConsoleEnable 
property to 1 (TRUE). 
Fo r  e x a m p l e :
racadm config -g cfgSerial -o cfgSerialConsoleEnable 1
See cfgSerialConsoleEnable (Read/Write) on page 366 for more 
information.
Table 4-1 provides the serial interface settings.
Configuring Linux for Serial Console Redirection During Boot
The following steps are specific to the Linux GRand Unified Bootloader (GRUB). 
Similar changes would be...

Advanced Configuration of the DRAC 553
Table 4-2. Sample File: /etc/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after 
making changes 
# to this file
# NOTICE: You do not have a /boot partition. This 
means that
# all kernel and initrd paths are relative 
to /, e.g.
# root (hd0,0)
# kernel /boot/vmlinuz-version ro root=
/dev/sdal
# initrd /boot/initrd-version.img
#
#boot=/dev/sda
default=0
timeout=10
#splashimage=(hd0,2)/grub/splash.xpm.gz
serial --unit=1...

54Advanced Configuration of the DRAC 5
When you edit the /etc/grub.conf file, use the following guidelines:
1
Disable GRUBs graphical interface and use the text-based interface; 
otherwise, the GRUB screen will not be displayed in RAC console 
redirection. To disable the graphical interface, comment out the line 
starting with 
splashimage.
2To enable multiple GRUB options to start console sessions through the 
RAC serial connection, add the following line to all options:
console=ttyS1,57600
Ta b l e 4 -...

Advanced Configuration of the DRAC 555
Table 4-3. Sample File: /etc/innitab
#
# 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 -...

56Advanced Configuration of the DRAC 5
Edit the file /etc/securetty as follows:
Add a new line with the name of the serial tty for COM2:
ttyS1 # 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....

Advanced Configuration of the DRAC 557
Table 4-4 shows a sample file with the new line.
Enabling the DRAC 5 Serial/Telnet/SSH Console
The serial/telnet/ssh console can be enabled locally or remotely.
Enabling the Serial/Telnet/SSH Console Locally
 NOTE: You (the current user) must have Configure DRAC 5 permission in order to 
perform the steps in this section.
To enable the serial/telnet/ssh console from the managed system, type the 
following local RACADM commands from a command prompt:
racadm config -g...

58Advanced Configuration of the DRAC 5
Enabling the Serial/Telnet/SSH Console Remotely
To enable the serial/telnet/ssh console remotely, type the following remote 
RACADM commands from a command prompt:
racadm -u  -p  -r  config -g cfgSerial -o cfgSerialConsoleEnable 1
racadm -u  -p  -r  config -g cfgSerial -o cfgSerialTelnetEnable 1
racadm -u  -p  -r  config -g cfgSerial -o cfgSerialSshEnable 1
 NOTE: When you use Internet Explorer version 6 SP2 or version 7 to log into a 
managed system on a private...

Advanced Configuration of the DRAC 559
Using RACADM Remotely
To  u s e  R A C A D M  c o m m a n d s remotely, type the following command from 
a command prompt on a management station:
racadm -u  -p  -r  config -g  -o  
Ensure that your web server is configured with a DRAC 5 card before you use 
RACADM remotely. Otherwise, RACADM times out and the following 
message appears: 
Unable to connect to RAC at specified IP address.
To enable your web server using Secure Shell (SSH), telnet or local RACADM,...

60Advanced Configuration of the DRAC 5
Configuring the Telnet Port Number
Type the following command to change the telnet port number on the DRAC 5.
racadm config -g cfgRacTuning -o cfgRacTuneTelnetPort 

Using a Serial or Telnet Console
You can run the serial commands in Table 4-19 remotely using RACADM or 
from the serial/telnet/ssh console command prompt. 
Logging in to the DRAC 5
After you have configured your management station terminal emulator software 
and managed node BIOS, perform the following...