message returned when I execute apt install sudo

Hi! I have installed Debian in a Vm at Virtual Box. I entered for first time in it, I did su to change my user to root, and then execute apt install sudo or apt-get install sudo. But it returns me
(…) /dev/sr0: Can’t open blockdev
Media change: please insert the disc labeled
‘Debian GNU/Linux 12.5.0 (…)
in the drive ‘/media/cdrom’ and press [Enter]

I’m looking for a solution in internet. Some examples use sudo, which I’m tying to install , so are useless for me. In other cases, it’s said to make nano /etc/apt/source.list and comment with # the deb disc. I had done this, and doesn’t work for me. When I try to install sudo, doesn’t find the package.

Other options? In any case, thanks for your attention

I tried to make nano /etc/apt/source.list and comment with # the deb disc. I had done this, and doesn’t work for me. When I try to install sudo, doesn’t find the package.

I’m expecting to insert the disc at media/cdrom or do some change that will allow me to install sudo