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Integrated Dell Remote Access Controller 9 Version 3.30.30.30 User's Guide

Controlling GRUB from serial console

You can configure GRUB to use the serial console instead of the VGA console. This allows you to interrupt the boot process and choose a different kernel or add kernel parameters, for example, to boot into single user mode.
To configure GRUB to use serial console, comment out the splash image and add the serial and terminal options to grub.conf :
[root@localhost ~]# cat /boot/grub/grub.conf
# 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/hda2
#          initrd /initrd-version.img
#boot=/dev/hda
default=0
timeout=10
#splashimage=(hd0,0)/grub/splash.xpm.gz
serial --unit=0 --speed=1152001
NOTE Restart the system for the settings to take effect.

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