1、备份

总共需要备份两个文件
a、/etc/apt/sources.list.d/raspi.list
b、/etc/apt/sources.list

2、删除上述两个文件内到所有内容，然后添加如下内容

/etc/apt/sources.list.d/raspi.list

deb https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib
deb-src https://mirrors.aliyun.com/debian/ bookworm main non-free non-free-firmware contrib
deb https://mirrors.aliyun.com/debian-security/ bookworm-security main
deb-src https://mirrors.aliyun.com/debian-security/ bookworm-security main
deb https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib
deb-src https://mirrors.aliyun.com/debian/ bookworm-updates main non-free non-free-firmware contrib
deb https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib
deb-src https://mirrors.aliyun.com/debian/ bookworm-backports main non-free non-free-firmware contrib

/etc/apt/sources.list

deb https://mirrors.aliyun.com/debian/ bookworm main
# Uncomment line below then 'apt-get update' to enable 'apt-get source'
#deb-src http://archive.raspberrypi.com/debian/ bookworm main

3、更新
sudo apt-get update
sudo apt-get upgrade