原系统是没有安装vim的，只有vi，可以自行安装

1、修改debian系统源 和proxmox ve 源

vim /etc/apt/sources.list

#deb http://ftp.debian.org/debian buster main contrib

#deb http://ftp.debian.org/debian buster-updates main contrib

# security updates

#deb http://security.debian.org buster/updates main contrib

# debian aliyun source

deb https://mirrors.aliyun.com/debian buster main contrib non-free

deb https://mirrors.aliyun.com/debian buster-updates main contrib non-free

deb https://mirrors.aliyun.com/debian-security buster/updates main contrib non-free

# proxmox source

# deb http://download.proxmox.com/debian/pve buster pve-no-subscription

deb https://mirrors.ustc.edu.cn/proxmox/debian/pve buster pve-no-subscription

2、注释掉企业源

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

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

3、修改CEPH源

vim  /etc/apt/sources.list.d/ceph.list

#deb http://download.proxmox.com/debian/ceph-nautilus buster main

deb http://mirrors.ustc.edu.cn/proxmox/debian/ceph-nautilus buster main