Installation and upgrade failed : bullseye-backports no longer has a Release file?

Support
, ,
1

What type of hardware are you using: VPS bought online
What YunoHost version are you running: 11.3.0.2
How are you able to access your server: The webadmin

Describe your issue

Hello!!

Thanks for taking time read through my question here -

I’m running into similar log warning as I’m trying to install an app (FreshRSS) as well as when trying to upgrade the system. Both the installation and the upgrade failed.

My virtual server is on a DigitalOcean droplet, Debian 11 x64. I don’t know if this issue is related to the Debian bullseye updates?

Share relevant logs or error messages

Installation failed as I tried to install the FreshRSS app


2025-08-10 16:17:15,878: WARNING - E: The repository 'http://deb.debian.org/debian bullseye-backports Release' no longer has a Release file.

Here’s the log link: https://paste.yunohost.org/raw/agaxuqugoz

Upgrade error

Error: "500"

Action: "PUT" /yunohost/api/update/all

Error message:
Unable to update the cache of APT (Debian's package manager). Here is a dump of the sources.list lines, which might help identify problematic lines:
sources.list:deb http://deb.debian.org/debian bullseye main
sources.list:deb-src http://deb.debian.org/debian bullseye main
sources.list:deb http://security.debian.org/debian-security bullseye-security main
sources.list:deb-src http://security.debian.org/debian-security bullseye-security main
sources.list:deb http://deb.debian.org/debian bullseye-updates main
sources.list:deb-src http://deb.debian.org/debian bullseye-updates main
sources.list:deb http://deb.debian.org/debian bullseye-backports main
sources.list:deb-src http://deb.debian.org/debian bullseye-backports main
sources.list.d/extra_php_version.list:deb https://packages.sury.org/php/ bullseye main
sources.list.d/yunohost.list:deb [signed-by=/usr/share/keyrings/yunohost-archive-keyring.gpg] http://forge.yunohost.org/debian/ bullseye stable
sources.list.d/droplet-agent.list:deb [signed-by=/usr/share/keyrings/droplet-agent-keyring.gpg] https://repos-droplet.digitalocean.com/apt/droplet-agent main main

While processing the action the server said:

Fetching available upgrades for system packages…
E: The repository 'http://deb.debian.org/debian bullseye-backports Release' no longer has a Release file.

Thank you!

2

That’s probably because you have the “backports” for Bullseye enabled (dunno if you know/understand the concept of backports)

It looks like it may have disappeared, which I’m guessing is related to the fact that the new version of Debian, Debian 13/Trixie, was released a few days ago, and Bullseye therefore becomes the “old-old-stable” and they probably don’t maintain the backports anymore.

Naively you can just remove the corresponding line which you can find using : sudo grep -nr backport /etc/apt/sources.list*

(and consider upgrading to YunoHost 12 in a not-so-distant future)

1 Like
3

my bet is also on Trixie relase two days ago

1 Like
4

From the docs:

  • bullseye-backports has reached end-of-life and is no longer supported or updated
  • bullseye-backports-sloppy has reached end-of-life and is no longer supported or updated
2 Likes
5

Thanks a lot!! Yes removing the backports lines helped.

And yes will consider upgrading to YunoHost 12.

6

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.