Apt does not work after successful installation of Debian 11

[fernandocesarpinto]

I freshly installed Debian 11 from image debian-bullseye-DI-rc1-amd64-DVD-1.

After I login, open a terminal and `sudo apt update` I get the following errors:

~$ sudo apt update
Ign:1 cdrom://[Debian GNU/Linux bullseye-DI-rc1 _Bullseye_ - Official Snapshot amd64 DVD Binary-1 20210415-20:26] bullseye InRelease
Err:2 cdrom://[Debian GNU/Linux bullseye-DI-rc1 _Bullseye_ - Official Snapshot amd64 DVD Binary-1 20210415-20:26] bullseye Release
Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs
Hit:3 http://deb.debian.org/debian bullseye InRelease
Hit:4 http://security.debian.org/debian-security bullseye-security InRelease
Reading package lists... Done
E: The repository 'cdrom://[Debian GNU/Linux bullseye-DI-rc1 _Bullseye_ - Official Snapshot amd64 DVD Binary-1 20210415-20:26] bullseye 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.

Any idea of what is wrong?

[craigevil]

Comment the cd-rom lines in /etc/apt/sources.list {Corrected}

[4D696B65]

Comment the cd-rom lines in /etc/sources.list

/etc/apt/sources.list

[fernandocesarpinto]

Looks like a bug in the installation of RC1. I edited the file /etc/apt/sources.list and there was this line doubled, and just one of them already commented:

Code: Select all

# deb cdrom:[Debian GNU/Linux bullseye-DI-rc1 _Bullseye_ - Official Snapshot amd64 DVD Binary-1 20210415-20:26]/ bullseye contrib main

deb cdrom:[Debian GNU/Linux bullseye-DI-rc1 _Bullseye_ - Official Snapshot amd64 DVD Binary-1 20210415-20:26]/ bullseye contrib main

deb http://deb.debian.org/debian/ bullseye main non-free contrib
deb-src http://deb.debian.org/debian/ bullseye main non-free contrib

deb http://security.debian.org/debian-security bullseye-security main contrib non-free
deb-src http://security.debian.org/debian-security bullseye-security main contrib non-free

After commenting it out, it works.

[kedaha]

Looks like a bug in the installation of RC1. I edited the file /etc/apt/sources.list and there was this line doubled, and just one of them already commented:
[ ...]
After commenting it out, it works.

No, it's not a bug; The second line was uncommented because it was a DVD image, which is to allow additional stuff to be installed initially from this medium with low bandwidth. It would have got commented if it had been a small net install image.