From f8afd343a6d4d7852ecfbe6348cf4dccc8b3826e Mon Sep 17 00:00:00 2001
From: 839 <8398a7@gmail.com>
Date: Fri, 21 Jun 2019 01:52:49 +0900
Subject: [PATCH] [#15031] update the upgrade method of kubelet / kubectl of
 worker nodes (#15032)

---
 .../tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-15.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/content/en/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-15.md b/content/en/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-15.md
index 22a6b8f633..ccd23793e5 100644
--- a/content/en/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-15.md
+++ b/content/en/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-15.md
@@ -314,8 +314,9 @@ without compromising the minimum required capacity for running your workloads.
     {{< tabs name="k8s_kubelet_and_kubectl" >}}
     {{% tab name="Ubuntu, Debian or HypriotOS" %}}
     # replace x in 1.15.x-00 with the latest patch version
-    apt-get update
-    apt-get install -y kubelet=1.15.x-00 kubectl=1.15.x-00
+    apt-mark unhold kubelet kubectl && \
+    apt-get update && apt-get install -y kubelet=1.15.x-00 kubectl=1.15.x-00 && \
+    apt-mark hold kubelet kubectl
     {{% /tab %}}
     {{% tab name="CentOS, RHEL or Fedora" %}}
     # replace x in 1.15.x-0 with the latest patch version