一.更换debian的软件源

1.在Shell页面输入以下命令进入编辑状态

nano etc/apt/sources.list

2.注释掉现有源地址

3.添加清华源

deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian/ bullseye-updates main contrib non-free
deb https://mirrors.tuna.tsinghua.edu.cn/debian-security bullseye-security main contrib non-free

4.保存退出

二.更换PVE源

1.在Shell页面输入命令进入编辑状态

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

2.注释掉现有源地址

3.添加清华源

deb https://mirrors.tuna.tsinghua.edu.cn/proxmox/debian bullseye pve-no-subscription

4.保存退出

三.更新系统

apt-get update
apt-get upgrade