Debian 11 (Bullseye) -- Full sources.list

sources.list

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

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

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

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

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

Debian 12 (Bookworm ) -- Full sources.list
deb http://deb.debian.org/debian bookworm main contrib non-free non-free-firmware
deb http://deb.debian.org/debian bookworm-updates main contrib non-free non-free-firmware
deb http://deb.debian.org/debian-security bookworm-security main contrib non-free non-free-firmware

Debian 13 (Trixie) - /etc/apt/sources.list.d/debian.sources

Types: deb
URIs: https://deb.debian.org/debian
Suites: trixie trixie-updates
Components: main contrib non-free non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

Types: deb
URIs: https://security.debian.org/debian-security
Suites: trixie-security
Components: main contrib non-free non-free-firmware
Signed-By: /usr/share/keyrings/debian-archive-keyring.gpg

Bullseye is archived now (but not debian-security)

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

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

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

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

Since 31august 2026 Debian 11 (Bullseye) reached End Of Life support.

You can replace all sources repos in /etc/apt/sources.list by:

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

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

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

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

I got the following error

perl : Depends: perl-base (= 5.32.1-4+deb11u3) but 5.32.1-4+deb11u4 is to be installed

when I tried to install git

apt install git

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

Host archive.security.debian.org not found: 3(NXDOMAIN)

mattrose@fiesole:~$ host archive.security.debian.org
Host archive.security.debian.org not found: 3(NXDOMAIN)

That line doesn't work

Yeah mb. You can remove it.

Actually there is no debian-security archive. (https://lists.debian.org/debian-user/2025/08/msg00415.html?)

> It is still listed at archive.debian.org.
> 
> However, I can't find bullseye-security there.
> 
> On Saturday 31st August 2024, Debian 11.11 was released. Did this mean 
> that everything that was in bullseye-security was rolled into the main 
> archive and so there's no reason to even look for debian-security any 
> more except for the archs still under LTS?

Yes, pretty much.

Kinda useful info, ppl asking questions about bullseye-security and debian team doesn't respond:
https://lists.debian.org/debian-mirrors/2026/09/maillist.html#00001

The following sources.list entry works for me and should have the last security updates for bullseye
deb [check-valid-until=no] http://snapshot.debian.org/archive/debian-security/20260901T022952Z/ bullseye-security main contrib non-free

The following sources.list entry works for me and should have the last security updates for bullseye deb [check-valid-until=no] http://snapshot.debian.org/archive/debian-security/20260901T022952Z/ bullseye-security main contrib non-free

https://snapshot.debian.org/archive/debian-security/20260903T220410Z/ - this one is the last wth deb11 packages

This one is working:

deb [check-valid-until=no] http://archive.debian.org/debian bullseye main contrib non-free
deb [check-valid-until=no] http://archive.debian.org/debian bullseye-updates main contrib non-free
deb [check-valid-until=no] http://snapshot.debian.org/archive/debian-security/20260901T022952Z/ bullseye-security main contrib non-free

Thanks @mrose-tc and @monokini3d for the snapshot repo!

debmirror --nosource \
          --host=snapshot.debian.org \
          --method=https \
          --root=archive/debian-security/20260903T220410Z \
          --dist=bullseye-security \
          --section=main,contrib,non-free \
          --arch=amd64 \
          --ignore-release-gpg \
          --progress \
          /opt/security/

28GB AMD64 only localrepo in /opt/security :) I don't know how long snapshots will be accessible.

What worked for me:

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

What worked for me:

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

You have no problems with http://security.debian.org/debian-security/dists/bullseye-security/ but... try to compare this list http://security.debian.org/debian-security/pool/updates/main/j/jq/ with this list https://snapshot.debian.org/archive/debian-security/20260903T220410Z/pool/updates/main/j/jq/

Try to find any "deb11" package here http://security.debian.org/debian-security/pool/updates/main/

You have no problems with updating metadata of repo, and you have no packages in your system to update from bullseye-security. But... try to install (or reinstall) jq...