diff --git a/meta-quanta/meta-olympus-nuvoton/conf/local.conf.sample b/meta-quanta/meta-olympus-nuvoton/conf/local.conf.sample
index 0b07f63..f77eea4 100644
--- a/meta-quanta/meta-olympus-nuvoton/conf/local.conf.sample
+++ b/meta-quanta/meta-olympus-nuvoton/conf/local.conf.sample
@@ -1,11 +1,11 @@
 MACHINE ??= "olympus-nuvoton"
 DISTRO ?= "openbmc-phosphor"
 PACKAGE_CLASSES ?= "package_rpm"
-SANITY_TESTED_DISTROS_append ?= " *"
-EXTRA_IMAGE_FEATURES = "debug-tweaks"
-USER_CLASSES ?= "buildstats image-prelink"
+SANITY_TESTED_DISTROS:append ?= " *"
+EXTRA_IMAGE_FEATURES ?= "debug-tweaks"
+USER_CLASSES ?= "buildstats"
 PATCHRESOLVE = "noop"
-BB_DISKMON_DIRS = "\
+BB_DISKMON_DIRS ??= "\
     STOPTASKS,${TMPDIR},1G,100K \
     STOPTASKS,${DL_DIR},1G,100K \
     STOPTASKS,${SSTATE_DIR},1G,100K \
@@ -14,4 +14,4 @@
     ABORT,${DL_DIR},100M,1K \
     ABORT,${SSTATE_DIR},100M,1K \
     ABORT,/tmp,10M,1K"
-CONF_VERSION = "1"
+CONF_VERSION = "2"