diff --git a/xCAT/xCAT.spec b/xCAT/xCAT.spec
index a832b11c1..547733957 100644
--- a/xCAT/xCAT.spec
+++ b/xCAT/xCAT.spec
@@ -241,6 +241,8 @@ fi
 mkdir -p /var/log/xcat
 date >> /var/log/xcat/upgrade.log
 $RPM_INSTALL_PREFIX0/sbin/xcatconfig -u -V >> /var/log/xcat/upgrade.log
+if grep "Failed to copy  /opt/xcat/share/xcat/netboot/genesis/x86_64/fs" /var/log/xcat/upgrade.log; then
+    echo 'mknb failed to complete successfully'
 fi
 exit 0