更新信息过时，“获取光盘失败”

Question

我的屏幕顶部有一个警告三角形。当我点击它时，它说我的更新信息已过时。当我输入sudo apt-get update && sudo apt-get upgrade终端时，我收到以下消息：

W: Failed to fetch cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417)/dists/trusty/main/binary-i386/Packages  Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs

W: Failed to fetch cdrom://Ubuntu 14.04 LTS _Trusty Tahr_ - Release i386 (20140417)/dists/trusty/restricted/binary-i386/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.

有任何想法吗？

Answer 1

您的更新设置已启用您的 cdrom 文件。因此，每次尝试和更新时，它都会自动查找那些根据定义已过时的文件。只需取消选择那些 cdrom 选项即可sudo apt-get update && sudo apt-get upgrade 正常运行。