(Solved)E: Some index files failed to download

[sarksloane]

When I tried to update using

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apt-get update

I noticed the below, what does it mean? thanks.

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W: Failed to fetch cdrom://[Debian GNU/Linux 8.7.1 _Jessie_ - Official amd64 CD Binary-1 20170116-11:01]/dists/jessie/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.

[GarryRicketson]

How to update and install packages on Debian
=====
https://www.debian.org/doc/manuals/debi ... ls.en.html
=====
https://wiki.debian.org/DebianPackageManagement
There is much more on all of this, I recommend reading as much as you can.
==================
There is not much details in you post,..like what version of Debian ?
If this is a fresh install, you need to edit your /etc/apt/sources.list
file,... the lines for CD should be commented out, or removed.
Unless you are trying to use a cd to update ?
It would help to see what your actual /etc/apt/sources.list file has in it.
There is a example of what it should have in it here:
https://wiki.debian.org/SourcesList

Also:
https://manpages.debian.org/jessie/apt/ ... .5.en.html

[sarksloane]

How to update and install packages on Debian
=====
https://www.debian.org/doc/manuals/debi ... ls.en.html
=====
https://wiki.debian.org/DebianPackageManagement
There is much more on all of this, I recommend reading as much as you can.
==================
There is not much details in you post,..like what version of Debian ?
If this is a fresh install, you need to edit your /etc/apt/sources.list
file,... the lines for CD should be commented out, or removed.
Unless you are trying to use a cd to update ?
It would help to see what your actual /etc/apt/sources.list file has in it.
There is a example of what it should have in it here:
https://wiki.debian.org/SourcesList

Also:
https://manpages.debian.org/jessie/apt/ ... .5.en.html

Thank you very much Mr. Garry..

I edited my sources.list and put # to

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deb cdrom:[Debian GNU/Linux 8.7.1 _Jessie_ - Official amd64 CD Binary-1 20170116-11:01]/ jessie main

to make it comment.