diff --git a/fs_mgr/fs_mgr_overlayfs.cpp b/fs_mgr/fs_mgr_overlayfs.cpp
index 730d3db..dc2530e 100644
--- a/fs_mgr/fs_mgr_overlayfs.cpp
+++ b/fs_mgr/fs_mgr_overlayfs.cpp
@@ -631,7 +631,7 @@
         LERROR << mnt_type << " has no mkfs cookbook";
         return false;
     }
-    command += " " + scratch_device;
+    command += " " + scratch_device + " >/dev/null 2>/dev/null </dev/null";
     fs_mgr_set_blk_ro(scratch_device, false);
     auto ret = system(command.c_str());
     if (ret) {