How to add LMDE repository to Debain 11?

[milokc]

How can I add LMDE repository to Debain 11?
I try to add string "deb http://packages.linuxmint.com/ debian main upstream import" in /etc/apt/sources.list
but when I try to run "apt update" I see an error
E: Repository «http://packages.linuxmint.com debian Release» is not signed.
I try to install manualy linuxmint-keyring_2016.05.26_all.deb and see
Warning: apt-key should not be used in scripts (called from postinst maintainerscript of the package linuxmint-keyring)
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
what am I doing wrong?

[Hoser Rob]

This is just a bad idea that's going to create a fenkendebian. That's what's wrong.

You should read this: https://wiki.debian.org/DontBreakDebian

[t42]

You should read this: https://wiki.debian.org/DontBreakDebian

Yeah, good reading for users of any distribution!

This part specifically answers the subject question:

Repositories that can create a FrankenDebian if used with Debian Stable:
,,,
Ubuntu, Mint or other derivative repositories are not compatible with Debian!
Ubuntu PPAs and other repositories created to distribute single applications

[milokc]

I hope my Frankendebian lives on. managed to update.
I had to install LMDE and explore how the rep is updated there.
if suddenly someone else wants to make himself a frankendebian.
I copied linuxmint-keyring.gpg from /usr/share/keyrings.
then
apt update
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A6616109451BBBF2 (took key from warning)
and further
sudo apt reinstall libxapp1
otherwise it won't let you install xapps-common

P.S. the LMDE repository has the linuxmint-keyring package, you can get gpg from it. maybe just install it and add the key.

[Juan_David95]

I copied linuxmint-keyring.gpg from /usr/share/keyrings.

where did you copy it from? from LMDM5. I am doing the same tests and I get the error of:

Code: Select all

E: El repositorio «http://packages.linuxmint.com debian Release» no está firmado.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto está deshabilitado por omisión.
N: Vea la página de manual apt-secure(8) para los detalles sobre la creación de repositorios y la configuración de usuarios.

[Hoser Rob]

More bad advice. When (not if) it breaks no one here is going know how to help you fix it and no one at Debian would be remotely interested.

[MiZoG]

You can turn a vanilla minimum Debian installation into LMDE. That would be less troublesome than installing desktop environments from the main edition of Linux Mint into LMDE. There are a few low-level tweaks in LMDE beyond DE but generally you can do that. Main Mint repo for LMDE depends on Debian codebase, is essentially a third-party Debian repo (not a PPA) and its maintainers are... trusted.

deb [trusted=yes] http://packages.linuxmint.com elsie main upstream import backport

You'll get a warning but you can use the repo all the same.

Now why would you want to do that?
Switch to LMDE for your ease of mind.
If you have a full-fledged Debian system with lots of software installed etc, you will surely risk breaking apt.

[Juan_David95]

I'm using a mxlinux21 respin with cinnamon and wanted to update to the latest version of cinnamon. I already did it and it worked perfectly.

If someone is interested in doing the same, in this forum I explain the step by step https://forum.mxlinux.org/viewtopic.php ... 03#p703403

Thank you very much everyone for the warnings; take precautionary measures.