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.依照默認選項按回車鍵，完成后重啟系統(tǒng)

6.輸入該命令按回車鍵可查看當前系統(tǒng)版本：`cat /etc/os-release`