编辑

nano /etc/apt/sources.list.d/pve-enterprise.list

注释初始源

#deb https://enterprise.proxmox.com/debian/pve stretch pve-enterprise

添加新源

echo "deb http://download.proxmox.com/debian/pve stretch pve-no-subscription" > /etc/apt/sources.list.d/pve-install-repo.list

添加证书

wget http://download.proxmox.com/debian/proxmox-ve-release-5.x.gpg -O /etc/apt/trusted.gpg.d/proxmox-ve-release-5.x.gpg

更新

apt update && apt dist-upgrade