|  | Linux supports two methods of overriding the BIOS DSDT: | 
|  |  | 
|  | CONFIG_ACPI_CUSTOM_DSDT builds the image into the kernel. | 
|  |  | 
|  | CONFIG_ACPI_CUSTOM_DSDT_INITRD adds the image to the initrd. | 
|  |  | 
|  | When to use these methods is described in detail on the | 
|  | Linux/ACPI home page: | 
|  | http://www.lesswatts.org/projects/acpi/overridingDSDT.php | 
|  |  | 
|  | Note that if both options are used, the DSDT supplied | 
|  | by the INITRD method takes precedence. | 
|  |  | 
|  | Documentation/initramfs-add-dsdt.sh is provided for convenience | 
|  | for use with the CONFIG_ACPI_CUSTOM_DSDT_INITRD method. |