diff --git a/target/linux/x86/image/Makefile b/target/linux/x86/image/Makefile
index b412873c38..51490fa791 100644
--- a/target/linux/x86/image/Makefile
+++ b/target/linux/x86/image/Makefile
@@ -23,19 +23,19 @@ endif
 ifeq ($(CONFIG_X86_GRUB_IMAGES),y)
 ifneq ($(HOST_OS),Darwin)
   define Image/cmdline/squashfs
-    block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=squashfs
+    block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=squashfs rootwait
   endef
 
   define Image/cmdline/jffs2-64k
-    block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=jffs2
+    block2mtd.block2mtd=$(ROOTPART),65536,rootfs root=/dev/mtdblock0 rootfstype=jffs2 rootwait
   endef
 
   define Image/cmdline/jffs2-128k
-    block2mtd.block2mtd=$(ROOTPART),131072,rootfs root=/dev/mtdblock0 rootfstype=jffs2
+    block2mtd.block2mtd=$(ROOTPART),131072,rootfs root=/dev/mtdblock0 rootfstype=jffs2 rootwait
   endef
 
   define Image/cmdline/ext2
-    root=$(ROOTPART) rootfstype=ext2
+    root=$(ROOTPART) rootfstype=ext2 rootwait
   endef
   
   define Image/Build/grub