Every time I try update (using sudo apt update) my Ubuntu I get this problem:

Question

Every time I try update my Ubuntu using sudo apt update, I get this problem:

Reading package lists... Done       
E: The repository 'cdrom://Ubuntu 22.04 L22.04 LTS TS _Jammy Jellyfish_ - Release amd64 (20220419) jammy Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

How can I fix it? I use Ubuntu 22.04 LTS

Answer 1

In your /etc/apt/sources.list file, there are some mirrors set to install from your CD installation media.

You need to edit /etc/apt/sources.list and remove every line starting with cdrom://.