diff --git a/README.md b/README.md
index a15649f4..8aac2803 100644
--- a/README.md
+++ b/README.md
@@ -77,7 +77,7 @@ KubeKey can install Kubernetes and KubeSphere together. The dependency that need
 
 ## Usage
 
-### Get the Installer Excutable File
+### Get the Installer Executable File
 
 * Binary downloads of the KubeKey can be found on the [Releases page](https://github.com/kubesphere/kubekey/releases).
   Unpack the binary and you are good to go!
@@ -93,7 +93,7 @@ KubeKey can install Kubernetes and KubeSphere together. The dependency that need
 > Note:
 >
 > * Docker needs to be installed before building.
-> * If you have problem to access `https://proxy.golang.org/`, excute `build.sh -p` instead.
+> * If you have problem to access `https://proxy.golang.org`, execute `build.sh -p` instead.
 
 ### Create a Cluster
 
@@ -105,6 +105,7 @@ Quick Start is for `all-in-one` installation which is a good start to get famili
 
 ##### Command
 
+> If you have problem to access `https://storage.googleapis.com`, execute first `export KKZONE=cn`.
 ```shell script
 ./kk create cluster [--with-kubernetes version] [--with-kubesphere version]
 ```
@@ -133,6 +134,8 @@ Quick Start is for `all-in-one` installation which is a good start to get famili
 
 You have more control to customize parameters or create a multi-node cluster using the advanced installation. Specifically, create a cluster by specifying a configuration file.
 
+> If you have problem to access `https://storage.googleapis.com`, execute first `export KKZONE=cn`.
+
 1. First, create an example configuration file
 
     ```shell script
diff --git a/README_zh-CN.md b/README_zh-CN.md
index 19e358b7..67d2ff20 100644
--- a/README_zh-CN.md
+++ b/README_zh-CN.md
@@ -106,6 +106,7 @@ KubeKey 可以同时安装 Kubernetes 和 KubeSphere。根据 KubeSphere 所安
 > 注意： 由于 Kubernetes 暂不支持大写 NodeName， hostname 中包含大写字母将导致后续安装过程无法正常结束
 
 ##### 命令
+> 如果无法访问 `https://storage.googleapis.com`, 请先执行 `export KKZONE=cn`.
 
 ```shell script
 ./kk create cluster [--with-kubernetes version] [--with-kubesphere version]
@@ -135,6 +136,8 @@ KubeKey 可以同时安装 Kubernetes 和 KubeSphere。根据 KubeSphere 所安
 
 您可以使用高级安装来控制自定义参数或创建多节点群集。具体来说，通过指定配置文件来创建集群。
 
+> 如果无法访问 `https://storage.googleapis.com`, 请先执行 `export KKZONE=cn`.
+
 1. 首先，创建一个示例配置文件
 
     ```shell script
diff --git a/pkg/cluster/preinstall/preinstall.go b/pkg/cluster/preinstall/preinstall.go
index f9514610..5bee0679 100644
--- a/pkg/cluster/preinstall/preinstall.go
+++ b/pkg/cluster/preinstall/preinstall.go
@@ -59,9 +59,9 @@ func FilesDownloadHttp(mgr *manager.Manager, filepath, version, arch string) err
 		helm.GetCmd = fmt.Sprintf("curl -o %s/helm-%s-linux-%s.tar.gz  %s && cd %s && tar -zxf helm-%s-linux-%s.tar.gz && mv linux-%s/helm . && rm -rf *linux-%s*", filepath, helm.Version, helm.Arch, helm.Url, filepath, helm.Version, helm.Arch, helm.Arch, helm.Arch)
 	}
 
-	kubeadm.GetCmd = fmt.Sprintf("curl -o %s  %s", kubeadm.Path, kubeadm.Url)
-	kubelet.GetCmd = fmt.Sprintf("curl -o %s  %s", kubelet.Path, kubelet.Url)
-	kubectl.GetCmd = fmt.Sprintf("curl -o %s  %s", kubectl.Path, kubectl.Url)
+	kubeadm.GetCmd = fmt.Sprintf("curl -L -o %s  %s", kubeadm.Path, kubeadm.Url)
+	kubelet.GetCmd = fmt.Sprintf("curl -L -o %s  %s", kubelet.Path, kubelet.Url)
+	kubectl.GetCmd = fmt.Sprintf("curl -L -o %s  %s", kubectl.Path, kubectl.Url)
 	kubecni.GetCmd = fmt.Sprintf("curl -L -o %s  %s", kubecni.Path, kubecni.Url)
 
 	binaries := []files.KubeBinary{kubeadm, kubelet, kubectl, helm, kubecni}
@@ -72,7 +72,7 @@ func FilesDownloadHttp(mgr *manager.Manager, filepath, version, arch string) err
 			for i := 5; i > 0; i-- {
 				if output, err := exec.Command("/bin/sh", "-c", binary.GetCmd).CombinedOutput(); err != nil {
 					fmt.Println(string(output))
-					return errors.Wrap(err, fmt.Sprintf("Failed to download %s binary", binary.Name))
+					return errors.New(fmt.Sprintf("Failed to download %s binary: %s", binary.Name, binary.GetCmd))
 				}
 
 				if err := SHA256Check(binary, version); err != nil {
diff --git a/scripts/downloadKubekey.sh b/scripts/downloadKubekey.sh
index 3bde9d99..eac110bd 100755
--- a/scripts/downloadKubekey.sh
+++ b/scripts/downloadKubekey.sh
@@ -57,17 +57,20 @@ fi
 
 DOWNLOAD_URL="https://github.com/kubesphere/kubekey/releases/download/${KUBEKEY_VERSION}/kubekey-${KUBEKEY_VERSION}-${OSTYPE}-${ARCH}.tar.gz"
 if [ "x${KKZONE}" = "xcn" ]; then
-  export KKZONE=cn
   DOWNLOAD_URL="https://kubernetes.pek3b.qingstor.com/kubekey/releases/download/${KUBEKEY_VERSION}/kubekey-${KUBEKEY_VERSION}-${OSTYPE}-${ARCH}.tar.gz"
 fi
 
-echo "\nDownloading kubekey ${KUBEKEY_VERSION} from ${DOWNLOAD_URL} ...\n"
+echo ""
+echo "Downloading kubekey ${KUBEKEY_VERSION} from ${DOWNLOAD_URL} ..."
+echo ""
 
 curl -fsLO "$DOWNLOAD_URL"
 if [ $? -ne 0 ]; then
-  echo "\n\n"
-  echo "Failed to download Kubekey ${KUBEKEY_VERSION} !\n"
-  echo "Please verify the version you are trying to download.\n\n"
+  echo ""
+  echo "Failed to download Kubekey ${KUBEKEY_VERSION} !"
+  echo ""
+  echo "Please verify the version you are trying to download."
+  echo ""
   exit
 fi
 
@@ -75,4 +78,6 @@ filename="kubekey-${KUBEKEY_VERSION}-${OSTYPE}-${ARCH}.tar.gz"
 tar -xzf "${filename}"
 # rm "${filename}"
 
-echo "\nKubekey ${KUBEKEY_VERSION} Download Complete!\n"
+echo ""
+echo "Kubekey ${KUBEKEY_VERSION} Download Complete!"
+echo ""