From b99b744e6888ae5aa2a6ea261926e52213fee93a Mon Sep 17 00:00:00 2001
From: learn0208 <learn0208@gmail.com>
Date: Tue, 27 Jun 2023 21:12:23 +0800
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Error from server (NotFound): nodes \"10.10.10.111\" not found
---
 docs/op/upgrade.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/op/upgrade.md b/docs/op/upgrade.md
index 003b8cd..82f050d 100644
--- a/docs/op/upgrade.md
+++ b/docs/op/upgrade.md
@@ -37,6 +37,7 @@ $ ETCDCTL_API=3 etcdctl --write-out=table snapshot status backup.db
   - kube-proxy
   - kube-scheduler
 
+- 切换当前所在集群为升级集群, 在kubeasz控制端执行`dk ezctl checkout k8s-01`
 - 在kubeasz控制端执行`dk ezctl upgrade k8s-01` 即可完成k8s 升级，不会中断业务应用