diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/udev b/meta/recipes-core/initrdscripts/initramfs-framework/udev
index 4898b89246..7fa26ef807 100644
--- a/meta/recipes-core/initrdscripts/initramfs-framework/udev
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/udev
@@ -35,6 +35,29 @@ udev_enabled() {
 	return 0
 }
 
+udev_trigger_root_device() {
+	case "${bootparam_root:-}" in
+		PARTLABEL=?*)
+			root_match="PARTNAME=${bootparam_root#PARTLABEL=}"
+			;;
+		PARTUUID=?*)
+			root_match="PARTUUID=${bootparam_root#PARTUUID=}"
+			;;
+		*)
+			return 1
+			;;
+	esac
+
+	root_devices=$(udevadm trigger --dry-run --verbose \
+		--subsystem-match=block "--property-match=$root_match") || return 1
+
+	# udevadm succeeds even when no devices match, so check its dry-run output.
+	[ -n "$root_devices" ] || return 1
+
+	udevadm trigger --subsystem-match=block \
+		"--property-match=$root_match" --action=add
+}
+
 udev_run() {
 	add_module_pre_hook "udev_shutdown_hook_handler"
 
@@ -45,6 +68,11 @@ udev_run() {
 	sh -c "exec 4< /dev/console" || { exec 0> /dev/null; exec 1> /dev/null; exec 2> /dev/null; }
 
 	$_UDEV_DAEMON --daemon
-	udevadm trigger --action=add
+	if [ "${bootparam_initramfs_udev_root_only:-}" = "1" ] &&
+	   udev_trigger_root_device; then
+		debug "Triggered udev for root partition only"
+	else
+		udevadm trigger --action=add
+	fi
 	udevadm settle
 }