Error when updating

[Stosskraft]

Hello all,

I am getting an error I am not fimliar with when up dating from the terminal.



W: Failed to fetch cdrom://Kubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120423)/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://Kubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120423)/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://Kubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120423)/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

W: Failed to fetch cdrom://Kubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120423)/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 http://ppa.launchpad.net/nautilus-dr...source/Sources 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/nautilus-dr...amd64/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/nautilus-dr...-i386/Packages 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.
yanek@yanek-HP-G42-Notebook-PC:~$

The one about the CR ROM I don't understand. I did a fresh install from a USB.

Any ideas?

[Snowhog]

Edit as root, /etc/apt/sources.list and comment out (put a # in front of the line) the lines referring to cdrom.

[Stosskraft]

sorry how do i do that?

[Stosskraft]

How do I edit the sources list? /etc/apt/sources.list doesnt work for me.

[Snowhog]

sorry how do i do that?

Press Alt+F2 to bring up Krunner. Then type: kdesudo kate /etc/apt/sources.list and press Enter. This will launch the Kate text editor "as root" and open the file for editing.