fix chmod on exec runner

pkg/minikube/command/exec_runner.go

@@ -162,23 +162,24 @@ func (e *execRunner) Copy(f assets.CopyableFile) error {
 		// write to temp location ...
 		tmpfile, err := os.CreateTemp("", "minikube")
 		if err != nil {
-			return errors.Wrapf(err, "error creating tempfile")
+			return errors.Wrap(err, "error creating tempfile")
 		}
 		defer os.Remove(tmpfile.Name())
-		err = writeFile(tmpfile.Name(), f, os.FileMode(perms))
-		if err != nil {
+
+		// ... set the file permission ...
+		if err := tmpfile.Chmod(os.FileMode(perms)); err != nil {
+			return errors.Wrap(err, "error setting file permissions")
+		}
+
+		if err := writeFile(tmpfile.Name(), f, os.FileMode(perms)); err != nil {
 			return errors.Wrapf(err, "error writing to tempfile %s", tmpfile.Name())
 		}
 
-		// ... then use sudo to move to target ...
-		_, err = e.RunCmd(exec.Command("sudo", "cp", "-a", tmpfile.Name(), dst))
-		if err != nil {
+		// ... then use sudo to move to target
+		if _, err := e.RunCmd(exec.Command("sudo", "cp", "-a", tmpfile.Name(), dst)); err != nil {
 			return errors.Wrapf(err, "error copying tempfile %s to dst %s", tmpfile.Name(), dst)
 		}
-
-		// ... then fix file permission that should have been fine because of "cp -a"
-		err = os.Chmod(dst, os.FileMode(perms))
-		return err
+		return nil
 	}
 	return writeFile(dst, f, os.FileMode(perms))
 }