diff --git a/tb.sh b/tb.sh
index ee4a10ae..66205f6a 100755
--- a/tb.sh
+++ b/tb.sh
@@ -45,6 +45,8 @@ function exec_container {
 function run_container {
     # create localdisk
     mkdir -p ${LOCALDISK}/designer/${MYUNAME}/${PROJECT}
+    #create centOS mirror
+    mkdir -p ${HOST_MIRROR_DIR}/CentOS
 
     docker run -it --rm \
         --name ${TC_CONTAINER_NAME} \