Incremental rpm image generation(Add config sample)

Add the config sample for incremental image generation to
meta-yocto/conf/local.conf.sample.extended

[YOCTO #1651]

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>

diff --git a/meta/conf/local.conf.sample.extended b/meta/conf/local.conf.sample.extended
index 7c265724c1c1cc375ba8940283ef023fdf52d8aa..b901c5b3aedc51041e9e4d61cf0b68cae2ebf4b5 100644 (file)
--- a/meta/conf/local.conf.sample.extended
+++ b/meta/conf/local.conf.sample.extended
@@ -123,3 +123,10 @@
 # The following is a list of classes to import to use in the generation of images
 # currently an example class is image_types_uboot
 # IMAGE_CLASSES = " image_types_uboot"
+
+# Incremental rpm image generation, the rootfs would be totally removed
+# and re-created in the second generation by default, but with
+# INC_RPM_IMAGE_GEN = "1", the rpm based rootfs would be kept, and will
+# do update(remove/add some pkgs) on it.  NOTE: This is not suggested
+# when you want to create a productive rootfs
+#INC_RPM_IMAGE_GEN = "1"