diff --git a/start_download.sh b/start_download.sh
index af1d4898eb5cea0455dc6a45b3b733b8767ee28f..86d1e6e0a8ac1bc61d41de1da59dd5e5589e5df9 100755
--- a/start_download.sh
+++ b/start_download.sh
@@ -25,12 +25,12 @@ function get_python_cmd()
 
     have_yum=`command -v yum | wc -l`
     if [ ${have_yum} -eq 1 ];then
-        yum install -y python3
+        yum install -y python3 > install_python3.log
     fi
 
     have_apt=`command -v apt | wc -l`
     if [ ${have_apt} -eq 1 ];then
-        DEBIAN_FRONTEND=noninteractive apt -y install python3
+        DEBIAN_FRONTEND=noninteractive apt -y install python3 > install_python3.log
     fi
     echo python3
     return 0