Debian系統升級可通過命令行或圖形界面操作，以下是具體步驟：
sudo apt update
sudo apt upgrade
sudo apt full-upgrade
sudo apt autoremove && sudo apt autoclean
sudo reboot
sudo apt install unattended-upgrades
sudo dpkg-reconfigure unattended-upgrades
sudo systemctl status apt-daily.timer
sudo systemctl status apt-daily-upgrade.timer
/etc/apt/sources.list源版本號，再執行full-upgrade。sudo apt --fix-broken install修復。以上步驟參考自。
