Debian 11 变更 Debian 11 testing
apt update && apt full-upgrade完全升级我们当前的 Debian 11 系统
vi /etc/apt/sources.list编辑软件包存储库
deb http://ftp.cz.debian.org/debian/ testing main contrib non-free non-free-firmware
deb-src http://ftp.cz.debian.org/debian/ testing main contrib non-free non-free-firmware
deb http://security.debian.org testing-security main contrib non-free non-free-firmware
deb-src http://security.debian.org testing-security main contrib non-free non-free-firmware
deb http://deb.debian.org/debian testing-updates main contrib non-free non-free-firmware
deb-src http://deb.debian.org/debian testing-updates main contrib non-free non-free-firmware把所有deb开头加# 或 全部删除,将上面的内容添加进 /etc/apt/sources.list
apt update && apt full-upgrade开始升级