diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 7a8ca3b94e..164ea1c817 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -1622,12 +1622,9 @@
A 32-bit MBR disk signature used by
directdisk images.
-
- The "live" option used with
- IMAGE_FSTYPES
- produces an image file that can be copied directly to
- a CD or USB device and run as is.
-
+
+
+
By default, the signature is set to an automatically
generated random value that allows the OpenEmbedded
build system to create a boot loader.