Enabling IPMI

From ScotGrid

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Revision as of 09:00, 27 Feb 2012

Enable in Bios

Enter the Bios at start up an enable remote access, make sure to disable redirection after boot so that things filter through properly.

Configure /etc/inittab

Connect a serial port from the Linux to COM2 (the IPMI port) by appending the following line to the terminal settings:

 S1:2345:respawn:/sbin/agetty -L 115200 ttyS1 vt100

Configure /boot/grub/grub.conf

Comment out any splash screens as they cannot be shown via serial, ass the following two lines:

serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1
terminal --timeout=10 serial console

Additionally add the following to the end of the kernel boot line

console=tty0 console=ttyS1,115200n8r

An example grub.conf is shown below:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/linuxvg/rootlv
#          initrd /initrd-version.img
#boot=/dev/sda
default=0
timeout=5
#splashimage=(hd0,0)/grub/splash.xpm.gz
serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1
terminal --timeout=10 serial console
hiddenmenu
title Scientific Linux SL (2.6.18-194.32.1.el5)
	root (hd0,0)
	kernel /vmlinuz-2.6.18-194.32.1.el5 ro root=/dev/linuxvg/rootlv console=tty0 console=ttyS1,115200n8r
	initrd /initrd-2.6.18-194.32.1.el5.img
 title Scientific Linux (2.6.18-194.3.1.el5)
	root (hd0,0)
	kernel /vmlinuz-2.6.18-194.3.1.el5 ro root=/dev/linuxvg/rootlv console=tty0 console=ttyS1,115200n8r
	initrd /initrd-2.6.18-194.3.1.el5.img