diff --git a/openwrt/target/linux/image/Makefile b/openwrt/target/linux/image/Makefile
index 74c778a3343..1e3e22f15c1 100644
--- a/openwrt/target/linux/image/Makefile
+++ b/openwrt/target/linux/image/Makefile
@@ -25,6 +25,12 @@ install-ib:
 	mkdir -p $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)
 	cp $(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)/kernel[-_]*.ipk $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/	
 
+install-prepare:
+	find $(KDIR)/root -type f -not -perm +0100 | xargs chmod 0644
+	find $(KDIR)/root -type f -perm +0100 | xargs chmod 0755
+	find $(KDIR)/root -type d | xargs chmod 0755
+	chmod 0777 $(KDIR)/root/tmp
+
 rebuild: clean prepare compile install
 clean:
 
diff --git a/openwrt/target/linux/image/jffs2.mk b/openwrt/target/linux/image/jffs2.mk
index a2c47e4dcd6..2a169ab3206 100644
--- a/openwrt/target/linux/image/jffs2.mk
+++ b/openwrt/target/linux/image/jffs2.mk
@@ -11,11 +11,11 @@ jffs2-clean:
 	$(MAKE) -C jffs2 clean
 	rm -f $(KDIR)/root.jffs2*
 
-$(KDIR)/root.jffs2-4MB:
+$(KDIR)/root.jffs2-4MB: install-prepare
 	@rm -rf $(KDIR)/root/jffs
 	$(STAGING_DIR)/bin/mkfs.jffs2 $(JFFS2OPTS) -e 0x10000 -o $@ -d $(KDIR)/root
 
-$(KDIR)/root.jffs2-8MB:
+$(KDIR)/root.jffs2-8MB: install-prepare
 	@rm -rf $(KDIR)/root/jffs
 	$(STAGING_DIR)/bin/mkfs.jffs2 $(JFFS2OPTS) -e 0x20000 -o $@ -d $(KDIR)/root
 
diff --git a/openwrt/target/linux/image/squashfs.mk b/openwrt/target/linux/image/squashfs.mk
index 42ff77db645..3811567a097 100644
--- a/openwrt/target/linux/image/squashfs.mk
+++ b/openwrt/target/linux/image/squashfs.mk
@@ -8,7 +8,7 @@ squashfs-clean:
 	$(MAKE) -C squashfs clean
 	rm -f $(KDIR)/root.squashfs
 
-$(KDIR)/root.squashfs:
+$(KDIR)/root.squashfs: install-prepare
 	@mkdir -p $(KDIR)/root/jffs
 	$(STAGING_DIR)/bin/mksquashfs-lzma $(KDIR)/root $@ -nopad -noappend -root-owned -le