Proxmox changes Sources
The official Proxmox provides a enterprise source, but we do not need to subscription a enterprise license in home use. We only need the free and well-supported community source. By the way, we get a limitation download speed from international connect (1Mbps approximately) in home use, even I bought 300Mbps download speed plan. Thus, need to change system software sources as well. It could use Tsinghua mirror, Ali Yun mirror andUSTC mirror。