.. -*- mode: rst -*-

.. _server-plugins-probes-grub-serial-order:

grub-serial-order
=================

A basic hardware probe to determine if you should change the default
serial ordering in grub.conf. This pre-supposes that you know your
hardware is broken. You can tell something is wrong with your hardware
if it takes lots of time to iterate through the "Press a key" option
and present you with the grub menu. In some cases, I've seen this take
as long as 20 minutes.

.. code-block:: sh

    #!/bin/sh
    #
    #
    # We need to modify the order of the --serial line in grub
    # in order to fix silly hardware bugs.  In some cases, having
    # this in the wrong order causes grub to take an inordinate
    # amount of time to do anything before it actually auto-picks
    # the default menu option to boot.
    #

    PATH=/bin:/usr/bin:/sbin:/usr/sbin; export PATH
    # let's figure out what product type this is
    os=`uname -s`
    productname="product-no-dmidecode"

    if [ $os = "Linux" ] ; then
        productname=`dmidecode -s system-product-name 2>&1`
        case $productname in
        "PowerEdge M600")
            echo "console serial"
            ;;
        *)
            echo "serial console"
            ;;
        esac
    fi
    if [ $os = "SunOS" ] ; then
       # Bcfg2 server is unhappy with null output from probes
       echo "console"
    fi