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我無法升級系統，現在該怎麼辦？

tag-icon • tag-icon upgrade updates update-manager
我無法升級系統，現在該怎麼辦？

當我更新時，下載一些文件後會顯示以下錯誤。我現在該怎麼做？

W:Failed to fetch cdrom://Ubuntu 14.04.3 LTS _Trusty Tahr_ - Beta amd64 (20150805)/dists/trusty/main/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
, W:Failed to fetch cdrom://Ubuntu 14.04.3 LTS _Trusty Tahr_ - Beta amd64 (20150805)/dists/trusty/restricted/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
, W:Failed to fetch cdrom://Ubuntu 14.04.3 LTS _Trusty Tahr_ - Beta amd64 (20150805)/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 14.04.3 LTS _Trusty Tahr_ - Beta amd64 (20150805)/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.

答案1

從 USB 啟動時會發生這種情況，只要您連接到互聯網，就可以安全地忽略這些行，因為可以從互聯網下載軟體包。通常，您可以直接從 LiveCD 安裝少量軟體包，例如 WiFi 驅動程序，但不幸的是，此功能不適用於 LiveUSB。

如果需要，可以使用dpkgUSB 驅動器上「pool」資料夾的子資料夾中找到的 .deb 檔案來安裝這些軟體包（例如，安裝軟體包bcmwl-kernel-source以使某些 WiFi 晶片工作）。

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