format BOOT on nandroid restore.
diff --git a/Android.mk b/Android.mk
index c421d72..a440899 100644
--- a/Android.mk
+++ b/Android.mk
@@ -26,7 +26,7 @@
 
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 
-RECOVERY_VERSION := ClockworkMod Recovery v1.8.1.0
+RECOVERY_VERSION := ClockworkMod Recovery v1.8.1.1
 LOCAL_CFLAGS := -DRECOVERY_VERSION="$(RECOVERY_VERSION)"
 RECOVERY_API_VERSION := 2
 LOCAL_CFLAGS += -DRECOVERY_API_VERSION=$(RECOVERY_API_VERSION)
diff --git a/nandroid.c b/nandroid.c
index 9f039dd..44d0236 100644
--- a/nandroid.c
+++ b/nandroid.c
@@ -224,6 +224,9 @@
     int ret;
     if (restore_boot)
     {
+        ui_print("Erasing boot before restore...\n");
+        if (0 != (ret = format_root_device("BOOT:")))
+            return print_and_error("Error while formatting BOOT:!\n");
         sprintf(tmp, "flash_image boot %s/boot.img", backup_path);
         ui_print("Restoring boot image...\n");
         if (0 != (ret = __system(tmp))) {