Hi,
When I try to install Debian packages in App Centre an Authentication Required prompt pops up with the following message:
The software is not from a trusted source. Do not install this package unless you are sure it is safe to do so.
This is happening on a fresh installation of Ubuntu 24.04.1. My sources are the default ones provided by the installation:
$ cat /etc/apt/sources.list.d/ubuntu.sources
Types: deb
URIs: http://gb.archive.ubuntu.com/ubuntu/
Suites: noble noble-updates noble-backports
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
Types: deb
URIs: http://security.ubuntu.com/ubuntu/
Suites: noble-security
Components: main restricted universe multiverse
Signed-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg
This happens with packages from different sources, like LibreOffice Writer (noble-updates/main) and Gnome Chess (noble/universe). I don’t get any errors if I try to install the packages using apt on the command line.
Is there a reason why App Centre is showing these warnings?
Thanks!