树莓派换源

树莓派4Bx64换源

sudo nano /etc/apt/sources.list.d/raspi.list
  deb https://mirrors.cloud.tencent.com/raspberrypi/ buster main

sudo nano /etc/apt/sources.list
  deb https://mirrors.cloud.tencent.com/debian/ buster main contrib non-free
  deb https://mirrors.cloud.tencent.com/debian/ buster-updates main contrib non-free
  deb https://mirrors.cloud.tencent.com/debian-security buster/updates main contrib non-free
  deb-src https://mirrors.cloud.tencent.com/debian/ buster main contrib non-free
  deb-src https://mirrors.cloud.tencent.com/debian/ buster-updates main contrib non-free
  deb-src https://mirrors.cloud.tencent.com/debian-security buster/updates main contrib non-free

同步更新源，执行如下命令：

sudo apt-get update

更新升级以安装软件包，这个过程耗时较长。

sudo apt-get upgrade