Disabling Acpi Completely In The Grub.conf File - Red Hat ENTERPRISE LINUX 4 - ADMINISTRATION Manual

Chapter 2. Before Configuring a Red Hat Cluster

2.3.3. Disabling ACPI Completely in the grub.conf File

The preferred method of disabling ACPI Soft-Off is with chkconfig management
"Disabling ACPI Soft-Off with chkconfig
cluster, you can disable ACPI Soft-Off with the BIOS power management
ACPI Soft-Off with the
ACPI completely by appending acpi=off to the kernel boot command line in the grub.conf file.
Important
This method completely disables ACPI; some computers do not boot correctly if ACPI is
completely disabled. Use this method only if the other methods are not effective for your
cluster.
You can disable ACPI completely by editing the grub.conf file of each cluster node as follows:
1. Open /boot/grub/grub.conf with a text editor.
2. Append acpi=off to the kernel boot command line in /boot/grub/grub.conf (refer to
Example 2.12, "Kernel Boot Command Line with acpi=off Appended to
3. Reboot the node.
4. When the cluster is configured and running, verify that the node turns off immediately when
fenced.
Note
You can fence the node with the fence_node command or Conga.
18
Management"). If the preferred method is not effective for your
BIOS"). If neither of those methods is effective for your cluster, you can disable
(Section 2.3.1,
(Section 2.3.2, "Disabling
It").