Today, I suddenly felt like upgrading the PVE7.4-17 of an idle server to the latest PVE8.1. The main purpose is to test the waters for my mini host with inter cpu. After all, production equipment cannot be upgraded casually. If it fails, it will be a disaster. I will skip the previous steps. After all, I will…

Preface In the process of building a home data center, three virtual technologies are involved, namely the traditional Virtual Machine (VM), Linux Container (LXC), and the Docker technology that we mainly use when building applications. Why do I use them at the same time?