diff --git a/roots.c b/roots.c
index 4f76de5..028fbc4 100644
--- a/roots.c
+++ b/roots.c
@@ -213,8 +213,11 @@
         return -1;
     }
     if (strcmp(v->mount_point, volume) != 0) {
+#if 0
         LOGE("can't give path \"%s\" to format_volume\n", volume);
         return -1;
+#endif
+        return format_unknown_device(v->device, volume, NULL);
     }
 
     if (ensure_path_unmounted(volume) != 0) {