/etc/apt/sources.list
#
# deb cdrom:[Debian GNU/Linux 10 _Buster_ - Official Snapshot amd64 LIVE/INSTAL$
deb cdrom:[Debian GNU/Linux 10 _Buster_ - Official Snapshot amd64 LIVE/INSTALL $
# Line commented out by installer because it failed to verify:
#deb http://security.debian.org/debian-security buster/updates main contrib non$
# Line commented out by installer because it failed to verify:
#deb-src http://security.debian.org/debian-security buster/updates main contrib$
deb https://debian.csail.mit.edu/debian release-code-main main contrib
и вот ошибка
Ign:1 cdrom://[Debian GNU/Linux 10 _Buster_ - Official Snapshot amd64 LIVE/INSTALL Binary 20190712-12:32] buster InRelease
Err:2 cdrom://[Debian GNU/Linux 10 _Buster_ - Official Snapshot amd64 LIVE/INSTALL Binary 20190712-12:32] buster Release
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Err:3 https://debian.csail.mit.edu/debian release-code-main InRelease
Could not connect to debian.csail.mit.edu:443 (128.30.3.141). - connect (111: Connection refused)
Hit:4 https://packages.crunchbangplusplus.org/buster buster InRelease
Reading package lists... Done
E: The repository 'cdrom://[Debian GNU/Linux 10 _Buster_ - Official Snapshot amd64 LIVE/INSTALL Binary 20190712-12:32] buster 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.