我在 Linux Mint 18 KDE 版本上嘗試更新一些驅動程式、控制器（它討論了從儲存庫下載一些資料的方法）時總是遇到錯誤，我該如何修復它？
W:The repository 'cdrom://Linux Mint 18 _Sarah_ - Release amd64 20160904 xenial Release' does not have a Release file.
W:Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
W:See apt-secure(8) manpage for repository creation and user configuration details.
E:Failed to fetch cdrom://Linux Mint 18 _Sarah_ - Release amd64 20160904/dists/xenial/contrib/binary-amd64/Packages
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
E:Some index files failed to download. They have been ignored, or old ones used instead.
更新：
我也厭倦了收到一條訊息說“檢查你的網路連線”，正如你所看到的，我已經連線了...
