From 991e08fa7162b8484d495c0911aede9bc4f2ef7b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E7=A5=A5=E8=B6=85?= <iwind.liu@gmail.com>
Date: Fri, 18 Nov 2022 15:57:06 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=9C=E7=A8=8B=E5=AE=89=E8=A3=85=E8=8A=82?=
 =?UTF-8?q?=E7=82=B9=E6=97=B6uname=E8=AF=BB=E5=8F=96=E5=A4=B1=E8=B4=A5?=
 =?UTF-8?q?=E6=97=B6=E8=87=AA=E5=8A=A8=E9=87=8D=E8=AF=95?=
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---
 internal/installers/installer_base.go | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/internal/installers/installer_base.go b/internal/installers/installer_base.go
index 083b24c5..3b171f89 100644
--- a/internal/installers/installer_base.go
+++ b/internal/installers/installer_base.go
@@ -147,13 +147,23 @@ func (this *BaseInstaller) LookupLatestInstaller(filePrefix string) (string, err
 
 // InstallHelper 上传安装助手
 func (this *BaseInstaller) InstallHelper(targetDir string, role nodeconfigs.NodeRole) (env *Env, err error) {
-	uname, stderr, err := this.client.Exec("/usr/bin/uname -a")
+	var unameRetries = 3
+	var uname string
+	for i := 0; i < unameRetries; i++ {
+		uname, _, err = this.client.Exec("/usr/bin/uname -a")
+		if len(uname) == 0 {
+			continue
+		}
+		if err == nil {
+			break
+		}
+	}
 	if err != nil {
-		return env, err
+		return env, errors.New("unable to execute 'uname -a' on this system: " + err.Error())
 	}
 
 	if len(uname) == 0 {
-		return nil, errors.New("unable to execute 'uname -a' on this system: " + stderr)
+		return nil, errors.New("unable to execute 'uname -a' on this system")
 	}
 
 	osName := ""