diff --git a/Makefile.inc1 b/Makefile.inc1
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -2191,6 +2191,7 @@
 		-e "s/%PKG_NAME_PREFIX%/${PKG_NAME_PREFIX}/" \
 		-e "s/%PKG_MAINTAINER%/${PKG_MAINTAINER}/" \
 		-e "s|%PKG_WWW%|${PKG_WWW}|" \
+		-e "s/%RUNSCRIPTS%/"${${flavor} == "":?true:false}"/" \
 		${SRCDIR}/release/packages/kernel.ucl \
 		> ${KSTAGEDIR}/${DISTDIR}/kernel.${INSTALLKERNEL}${flavor}.ucl ; \
 	awk -F\" ' \
@@ -2228,6 +2229,7 @@
 		-e "s/%PKG_NAME_PREFIX%/${PKG_NAME_PREFIX}/" \
 		-e "s/%PKG_MAINTAINER%/${PKG_MAINTAINER}/" \
 		-e "s|%PKG_WWW%|${PKG_WWW}|" \
+		-e "s/%RUNSCRIPTS%/"${${flavor} == "":?true:false}"/" \
 		${SRCDIR}/release/packages/kernel.ucl \
 		> ${KSTAGEDIR}/kernel.${_kernel}/kernel.${_kernel}${flavor}.ucl ; \
 	awk -F\" ' \
diff --git a/release/packages/certctl.ucl b/release/packages/certctl.ucl
--- a/release/packages/certctl.ucl
+++ b/release/packages/certctl.ucl
@@ -1,6 +1,3 @@
-#
-#
-
 name = "%PKG_NAME_PREFIX%-%PKGNAME%"
 origin = "base"
 version = "%VERSION%"
@@ -19,7 +16,9 @@
 	# files being added or removed, we should use it instead to gate the
 	# rehash.
 	post-install = <<EOD
-	[ -x /usr/sbin/certctl ] && env DESTDIR=${PKG_ROOTDIR} \
-	    /usr/sbin/certctl rehash
+	if %RUNSCRIPTS% ; then
+		[ -x /usr/sbin/certctl ] && env DESTDIR=${PKG_ROOTDIR} \
+		    /usr/sbin/certctl rehash
+	fi
 EOD
 }
diff --git a/release/packages/generate-ucl.sh b/release/packages/generate-ucl.sh
--- a/release/packages/generate-ucl.sh
+++ b/release/packages/generate-ucl.sh
@@ -1,6 +1,4 @@
 #!/bin/sh
-#
-#
 
 main() {
 	desc=
@@ -30,6 +28,7 @@
 
 	shift $(( ${OPTIND} - 1 ))
 
+	runscripts="true"
 	vital="false"
 
 	case "${outname}" in
@@ -53,14 +52,17 @@
 		libcompat-dev|libcompiler_rt-dev|liby-dev)
 			outname=${outname%%-dev}
 			_descr="Development Files"
+			runscripts="false"
 			;;
 		libcompat-lib32_dev|libcompiler_rt-lib32_dev|liby-lib32_dev)
 			outname=${outname%%-lib32_dev}
 			_descr="32-bit Libraries, Development Files"
+			runscripts="false"
 			;;
 		libcompat-man|libelftc-man)
 			outname=${outname%%-man}
 			_descr="Manual Pages"
+			runscripts="false"
 			;;
 		utilities)
 			uclfile="${uclfile}"
@@ -74,31 +76,37 @@
 			outname="${outname%%-lib32_dev}"
 			_descr="32-bit Libraries, Development Files"
 			pkgdeps="${outname}"
+			runscripts="false"
 			;;
 		*-lib32_dbg)
 			outname="${outname%%-lib32_dbg}"
 			_descr="32-bit Libraries, Debugging Symbols"
 			pkgdeps="${outname}"
+			runscripts="false"
 			;;
 		*-lib32)
 			outname="${outname%%-lib32}"
 			_descr="32-bit Libraries"
 			pkgdeps="${outname}"
+			runscripts="false"
 			;;
 		*-dev)
 			outname="${outname%%-dev}"
 			_descr="Development Files"
 			pkgdeps="${outname}"
+			runscripts="false"
 			;;
 		*-dbg)
 			outname="${outname%%-dbg}"
 			_descr="Debugging Symbols"
 			pkgdeps="${outname}"
+			runscripts="false"
 			;;
 		*-man)
 			outname="${outname%%-man}"
 			_descr="Manual Pages"
 			pkgdeps="${outname}"
+			runscripts="false"
 			;;
 		${origname})
 			;;
@@ -128,6 +136,7 @@
 		echo "desc=${desc}"
 		echo "comment=${comment}"
 		echo "vital=${vital}"
+		echo "runscripts=${runscripts}"
 		echo "cp ${uclsource} -> ${uclfile}"
 		echo "==============================================================="
 		echo ""
@@ -162,6 +171,7 @@
 		-e "s/%PKG_NAME_PREFIX%/${PKG_NAME_PREFIX}/" \
 		-e "s|%PKG_WWW%|${PKG_WWW}|" \
 		-e "s/%PKG_MAINTAINER%/${PKG_MAINTAINER}/" \
+		-e "s/%RUNSCRIPTS%/${runscripts}/" \
 		${uclfile}
 	return 0
 }
diff --git a/release/packages/kernel.ucl b/release/packages/kernel.ucl
--- a/release/packages/kernel.ucl
+++ b/release/packages/kernel.ucl
@@ -1,6 +1,3 @@
-#
-#
-
 name = "%PKG_NAME_PREFIX%-%PKGNAME%"
 origin = "base"
 version = "%VERSION%"
@@ -16,6 +13,8 @@
 EOD
 scripts: {
 	post-install = <<EOD
-	/usr/sbin/kldxref ${PKG_ROOTDIR}/boot/%KERNELDIR%
+	if %RUNSCRIPTS% ; then
+		/usr/sbin/kldxref ${PKG_ROOTDIR}/boot/%KERNELDIR%
+	fi
 EOD
 }
diff --git a/release/packages/runtime.ucl b/release/packages/runtime.ucl
--- a/release/packages/runtime.ucl
+++ b/release/packages/runtime.ucl
@@ -1,6 +1,3 @@
-#
-#
-
 name = "%PKG_NAME_PREFIX%-%PKGNAME%"
 origin = "base"
 version = "%VERSION%"
@@ -17,9 +14,14 @@
 EOD
 scripts: {
 	post-install = <<EOD
-	pwd_mkdb -i -p -d  ${PKG_ROOTDIR}/etc ${PKG_ROOTDIR}/etc/master.passwd
-	services_mkdb %CAP_MKDB_ENDIAN% -q -o ${PKG_ROOTDIR}/var/db/services.db ${PKG_ROOTDIR}/etc/services
-	chmod 1777 ${PKG_ROOTDIR}/tmp
+	if %RUNSCRIPTS% ; then
+		pwd_mkdb -i -p -d ${PKG_ROOTDIR}/etc \
+		    ${PKG_ROOTDIR}/etc/master.passwd
+		services_mkdb %CAP_MKDB_ENDIAN% -q \
+		    -o ${PKG_ROOTDIR}/var/db/services.db \
+		    ${PKG_ROOTDIR}/etc/services
+		chmod 1777 ${PKG_ROOTDIR}/tmp
+	fi
 EOD
 }
 directories: {
diff --git a/release/packages/utilities.ucl b/release/packages/utilities.ucl
--- a/release/packages/utilities.ucl
+++ b/release/packages/utilities.ucl
@@ -1,6 +1,3 @@
-#
-#
-
 name = "%PKG_NAME_PREFIX%-%PKGNAME%"
 origin = "base"
 version = "%VERSION%"
@@ -17,6 +14,8 @@
 EOD
 scripts: {
 	post-install = <<EOD
-	cap_mkdb %CAP_MKDB_ENDIAN% ${PKG_ROOTDIR}/etc/login.conf
+	if %RUNSCRIPTS% ; then
+		cap_mkdb %CAP_MKDB_ENDIAN% ${PKG_ROOTDIR}/etc/login.conf
+	fi
 EOD
 }