更改原配置為最終方案some index files failed to dow
Some index files failed to download. They have been ignored, or old ones used instead.解決方案;
1.刪除 /var/lib/apt/lists/所有文件
sudo rm /var/lib/apt/lists/* -vf
有文件夾不能刪除的話使用
sudo rm -rf /var/lib/apt/lists/*
sudo rm /var/lib/apt/lists/* -vf
2.再次更新
sudo apt-get update
3.如果還是不行,那可能就是源有問題了,我們更改源配置。