一、修改debian系统源
nano /etc/apt/sources.list
通过nano命令修改/etc/apt/sources.list文件，修改完成后如下所示

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

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

# security updates

# deb http://security.debian.org bookworm-security main contrib

deb http://mirrors.ustc.edu.cn/debian bookworm main contrib non-free-firmware
deb http://mirrors.ustc.edu.cn/debian bookworm-updates main contrib non-free-firmware
deb http://mirrors.ustc.edu.cn/debian-security bookworm-security main contrib non-free-firmware
deb https://mirrors.ustc.edu.cn/proxmox/debian/pve bookworm pve-no-subscription

二、修改proxmox软件源

nano /etc/apt/sources.list.d/pve-enterprise.list
通过nano命令修改/etc/apt/sources.list.d/pve-enterprise.list文件，修改完成后如下所示

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

# 清华大学

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

三、修改ceph源

nano /etc/apt/sources.list.d/ceph.list
通过nano命令修改/etc/apt/sources.list.d/ceph.list文件，修改完成后如下所示

# deb https://enterprise.proxmox.com/debian/ceph-quincy bookworm enterprise

deb https://mirrors.ustc.edu.cn/proxmox/debian/ceph-quincy bookworm no-subscription

然后

cp /usr/share/perl5/PVE/CLI/pveceph.pm /usr/share/perl5/PVE/CLI/pveceph.pm.bak
sed -i 's|http://download.proxmox.com|https://mirrors.ustc.edu.cn/proxmox|g' /usr/share/perl5/PVE/CLI/pveceph.pm

四、修改lxc源

执行如下命令

cp /usr/share/perl5/PVE/APLInfo.pm /usr/share/perl5/PVE/APLInfo.pm.bak
sed -i 's|http://download.proxmox.com|https://mirrors.ustc.edu.cn/proxmox|g' /usr/share/perl5/PVE/APLInfo.pm
systemctl restart pvedaemon