Failed to download repository information while installing updates

Asked Dec 12 '13 at 18:43

Active Dec 13 '13 at 15:49

Viewed 61 times

When i run system update then i got following error:

W:Failed to fetch cdrom://Ubuntu 12.04.3 LTS _Precise Pangolin_ - Release amd64      (20130820.1)/dists/precise/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

W:Failed to fetch cdrom://Ubuntu 12.04.3 LTS _Precise Pangolin_ - Release amd64 (20130820.1)/dists/precise/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 12.04.3 LTS _Precise Pangolin_ - Release amd64 (20130820.1)/dists/precise/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 12.04.3 LTS _Precise Pangolin_ - Release amd64 (20130820.1)/dists/precise/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

E:Some index files failed to download. They have been ignored, or old ones used instead.

please help me on this.

edited Dec 13 '13 at 15:49

Braiam

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asked Dec 12 '13 at 18:43

Jaimin pandya

Similar to this and this – dhpasta Dec 12 '13 at 18:55
@dhpasta : i was already used both links, But i can't able to solve this question. – Jaimin pandya Dec 12 '13 at 19:01
@Waldir Leoncio : same question. – Jaimin pandya Dec 12 '13 at 19:06
Could you edit your question and add the output of cat /etc/apt/sources.list /etc/apt/sources.list.d/* – Braiam Dec 16 '13 at 02:01

Failed to download repository information while installing updates

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