--- /usr/share/initramfs-tools/hooks/dmraid	2014-02-19 00:07:51.000000000 +0800
+++ dmraid	2017-04-28 23:29:34.258766089 +0800
@@ -20,6 +20,7 @@
 if [ -x /sbin/dmraid ]; then
 	force_load dm-mod
 	force_load dm-mirror
+	force_load dm-raid
 	copy_exec /sbin/dmraid sbin
 	copy_exec /sbin/dmraid-activate sbin
 	if [ "$BUSYBOX" = n ]; then