From 3d02d92db0b6c2eaee966baf35a464a8af214a1d Mon Sep 17 00:00:00 2001
From: logan <gufengxiaoyuehan@163.com>
Date: Wed, 1 Jan 2020 12:40:51 +0800
Subject: [PATCH] remove old first
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

运行此命令表明user明确知道docker 在本机无法使用， 需要清除old version
---
 docker_install_centos.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/docker_install_centos.sh b/docker_install_centos.sh
index c43814ed..fb06e252 100755
--- a/docker_install_centos.sh
+++ b/docker_install_centos.sh
@@ -14,6 +14,17 @@ function checkSudo (){
 
 checkSudo
 
+# rm old or flawed  installation first
+yum remove docker \
+                  docker-client \
+                  docker-client-latest \
+                  docker-common \
+                  docker-latest \
+                  docker-latest-logrotate \
+                  docker-logrotate \
+                  docker-engine
+
+
 ## something required system utils
 yum install -y yum-utils device-mapper-persistent-data lvm2