zhoujiayao

**What happened**: keadm join加入边缘节点时，failed to pull and unpack image "registry.k8s.io/pause:3.6" **What you expected to happen**: 应该不报错才对 **How to reproduce it (as minimally and precisely as possible)**: k8s版本1.26.12，kubeedge1.15.1，使用docker作为容器运行时 **Anything else we...

Only local images can be copied, not linked images.