sudo apt update not working

When I try to do sudo apt update it shows the following:

root@Silver:~# sudo apt update
Ign:1 cdrom://[Official Debian GNU/Linux Live 12.9.0 kde 2025-01-11T10:25:55Z] bookworm InRelease
Err:2 cdrom://[Official Debian GNU/Linux Live 12.9.0 kde 2025-01-11T10:25:55Z] bookworm Release
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Reading package lists... Done
E: The repository 'cdrom://[Official Debian GNU/Linux Live 12.9.0 kde 2025-01-11T10:25:55Z] bookworm 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.
root@Silver:~#

What should I do to fix this? In another post they asked the op to show the contents of /et/apt/sources.list. This is all that showed up for me when I did cat /et/apt/sources.list:
deb cdrom:[Official Debian GNU/Linux Live 12.9.0 kde 2025-01-11T10:25:55Z]/ bookworm main non-free-firmware

Statistics: Posted by neuralblob — 2025-02-08 12:03 — Replies 6 — Views 83

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