1.编辑/etc/apt/sources.ist.d/pve-enterprise.list
nano /etc/apt/sources.list.d/pve-enterprise.list
注释
#deb https://enterprise.proxmox.com/debian/pve stretch pve-enterprise
2.添加免订阅的官方更新
echo "deb http://download.proxmox.com/debian/pve stretch pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list wget http://download.proxmox.com/debian/proxmox-ve-release-5.x.gpg -O /etc/apt/trusted.gpg.d/proxmox-ve-release-5.x.gpg 最后执行更新 apt update && apt dist-upgrade
顺利升级到5.3