root@sysresccd /mnt/hd/boot/grub % cat device.map
(fd0)   /dev/fd0
(hd0) /dev/sda


# Make sure device.map has at least one hd device
grep -q "^(hd[0-9]\+)" $device_map
+ grep -q '^(hd[0-9]\+)' /boot/grub/device.map
if [ "x$?" != "x0" ]; then
    echo "No suitable drive was found in the generated device map." 1>&2
    if test $recheck = yes; then
        echo "Reverting to backed up copy." 1>&2
        mv ${device_map}.backup $device_map
    fi
    exit 1
fi
+ '[' x1 '!=' x0 ']'
+ echo 'No suitable drive was found in the generated device map.'
No suitable drive was found in the generated device map.
+ test yes = yes
+ echo 'Reverting to backed up copy.'
Reverting to backed up copy.
+ mv /boot/grub/device.map.backup /boot/grub/device.map
+ exit 1
[root@sysresccd /]# grep -q '^(hd[0-9]\+)' /boot/grub/device.map
[root@sysresccd /]#
[root@sysresccd /]#
[root@sysresccd /]#  grep "^(hd[0-9]\+)" /boot/grub/device.map
(hd0) /dev/sda
[root@sysresccd /]#