1.輸入該命令按回車鍵：apt-get update && apt-get upgrade -y
2.輸入該命令按回車鍵：sed -i 's/stretch/buster/g' /etc/apt/sources.list
3.輸入該命令按回車鍵：apt-get update && apt-get upgrade -y
4.輸入該命令按回車鍵：apt-get dist-upgrade -y
5.依照默認(rèn)選項(xiàng)按回車鍵，完成后重啟系統(tǒng)
6.輸入該命令按回車鍵可查看當(dāng)前系統(tǒng)版本：cat /etc/os-release
