I’m on Debian 12, KDE Plasma, I often get this error
E: The repository ‘cdrom://[Debian GNU/Linux 12.0.0 Bookworm - Official amd64 DVD Binary-1 with firmware 20230610-10:23] bookworm Release’ does not have a Release file. W: Updating from such a repository can’t be done securely, and is therefore disabled by default. W: See apt-secure(8) manpage for repository creation and user configuration details. E: cdrom://[Debian GNU/Linux 12.0.0 Bookworm - Official amd64 DVD Binary-1 with firmware 20230610-10:23] bookworm Release is not (yet) available (Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs) W: http://dl.google.com/linux/earth/deb/dists/stable/InRelease: Key is stored in legacy trusted.gpg keyring (/etc/apt/trusted.gpg), see the DEPRECATION section in apt-key(8) for details.
I didn’t install from a CD Rom or DVD, what is the problem here?
Okay, so I haven’t installed Debian in quite some time, but I think I know what’s happening here.
It’s looking for the CD / DVD “repos” because it may be enabled in your apt sources. You just have to comment out the lines involved with CD and DVD in your /etc/apt/sources.list file I think.
Uh, yeah. Cheers
Since OP is new to linux I’ll just add this in case it’s helpful.
To edit a file owned by root (super account) you can use sudoedit /etc/apt/sources or alternatively sudo nano /etc/apt/sources in a terminal.
In the editor save by using the key combo Ctrl+S and exit with Ctrl+X.
Commenting is adding a in front of the line.
so the file should look like something like this
# deb cdrom:[Debian GNU/Linux 11.5.0 _Bullseye_ - Official amd64 NETINST 20220910-10:38]/ bullseye main
Question: can this be done via a graphical interface (eg like software-properties-kde in (K)ubuntu)?
yes it can be changed just to un check the box that says Cdrom in sources list. you may need to install that package as im not sure it is installed on debian by default. I start with a minimum install and build my system from there so it’s been a long time since I have seen a default install.
To add to what @lordnikon said, the program is called Software & Updates and I’m pretty sure it’s installed by default in GNOME (don’t know about other DEs).
