Installation does not work on Linux Mint

[dvbeek]

Describe the bug When following the Ubuntu-instructions on Mint, it ends up in an error:

deb [signed-by=/etc/apt/keyrings/teams-for-linux.asc arch=amd64] https://repo.teamsforlinux.de/debian/ stable main Hit:1 http://security.ubuntu.com/ubuntu noble-security InRelease Ign:2 https://mirrors.evoluso.com/linuxmint-packages/linuxmint-packages wilma InRelease
Get:3 https://repo.teamsforlinux.de/debian stable InRelease [10,8 kB]
Hit:4 http://archive.ubuntu.com/ubuntu noble InRelease
Hit:5 https://mirrors.evoluso.com/linuxmint-packages/linuxmint-packages wilma Release Hit:6 http://archive.ubuntu.com/ubuntu noble-updates InRelease Err:3 https://repo.teamsforlinux.de/debian stable InRelease Unknown error executing apt-key Hit:7 http://archive.ubuntu.com/ubuntu noble-backports InRelease Reading package lists... Done W: GPG error: https://repo.teamsforlinux.de/debian stable InRelease: Unknown error executing apt-key E: The repository 'https://repo.teamsforlinux.de/debian stable InRelease' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default.

To Reproduce https://github.com/IsmaelMartinez/teams-for-linux?tab=readme-ov-file#debianubuntu-and-other-derivatives

Expected behavior apt update will refresh without errors

Desktop (please complete the following information):

• OS: Linux Mint 22 Cinnamon
• Cinnamon Version: 6.2.9
• Linux Kernel: 6.8.0-48-generic

Work around

sudo apt update --allow-insecure-repositories

[IsmaelMartinez]

Hello @dvbeek ,

Can you try the image in the release section? I don't manage that repo that I believe is @nbuechner created. Maybe the GPG changed or the instructions for Linux Mint 22 are different.

You can probably ask this into the matrix room as others might be able to help you there.

Hope helps

[nbuechner]

Hi. I tested this on a fresh Mint 22 installation and followed the instructions on https://teamsforlinux.de/. No error here.

user@mint:~$ cat /etc/os-release 
NAME="Linux Mint"
VERSION="22 (Wilma)"
ID=linuxmint
ID_LIKE="ubuntu debian"
PRETTY_NAME="Linux Mint 22"
VERSION_ID="22"
HOME_URL="https://www.linuxmint.com/"
SUPPORT_URL="https://forums.linuxmint.com/"
BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/"
PRIVACY_POLICY_URL="https://www.linuxmint.com/"
VERSION_CODENAME=wilma
UBUNTU_CODENAME=noble

user@mint:~$ sudo mkdir -p /etc/apt/keyrings
[sudo] password for user:          
user@mint:~$ sudo wget -qO /etc/apt/keyrings/teams-for-linux.asc https://repo.teamsforlinux.de/teams-for-linux.asc
user@mint:~$ echo "deb [signed-by=/etc/apt/keyrings/teams-for-linux.asc arch=$(dpkg --print-architecture)] https://repo.teamsforlinux.de/debian/ stable main" | sudo tee /etc/apt/sources.list.d/teams-for-linux-packages.list
deb [signed-by=/etc/apt/keyrings/teams-for-linux.asc arch=amd64] https://repo.teamsforlinux.de/debian/ stable main
user@mint:~$ sudo apt update
Hit:1 http://archive.ubuntu.com/ubuntu noble InRelease
Hit:2 http://archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:3 http://archive.ubuntu.com/ubuntu noble-backports InRelease
Ign:4 http://packages.linuxmint.com wilma InRelease
Hit:5 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:6 http://packages.linuxmint.com wilma Release
Get:7 https://repo.teamsforlinux.de/debian stable InRelease [10,8 kB]
Get:9 https://repo.teamsforlinux.de/debian stable/main amd64 Packages [683 B]
Fetched 11,4 kB in 1s (16,0 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
274 packages can be upgraded. Run 'apt list --upgradable' to see them.
user@mint:~$ apt install teams-for-linux
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following NEW packages will be installed:
  teams-for-linux
0 upgraded, 1 newly installed, 0 to remove and 274 not upgraded.
Need to get 88,8 MB of archives.
After this operation, 299 MB of additional disk space will be used.
Get:1 https://repo.teamsforlinux.de/debian stable/main amd64 teams-for-linux amd64 1.11.5 [88,8 MB]
Fetched 88,8 MB in 8s (11,2 MB/s)                                                                                            
Selecting previously unselected package teams-for-linux.
(Reading database ... 454917 files and directories currently installed.)
Preparing to unpack .../teams-for-linux_1.11.5_amd64.deb ...
Unpacking teams-for-linux (1.11.5) ...
Setting up teams-for-linux (1.11.5) ...
update-alternatives is /usr/bin/update-alternatives
update-alternatives: using /opt/teams-for-linux/teams-for-linux to provide /usr/bin/teams-for-linux (teams-for-linux) in auto 
mode
Processing triggers for desktop-file-utils (0.27-2build1) ...
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for gnome-menus (3.36.0-1.1ubuntu3) ...
Processing triggers for mate-menus (1.26.1+mint1) ...
Processing triggers for mailcap (3.70+nmu1ubuntu1) ...

[IsmaelMartinez]

Thanks for checking @nbuechner !

[dvbeek]

I tried again from the instructions (https://teamsforlinux.de) and again directly from the given commands in the previous post, but it always ends up in an error on sudo apt update.

My cat /etc/os-release has the same output, and Teams was one of the first things I tried to install on my new laptop.

I only have problems with the apt repository... The Teams app itself is working perfectly.

[dvbeek]

Sorry, I just fixed the problem!

Apparently there was something wrong with the file permissions of the keyring. I fixed it like this: sudo chmod o+r /etc/apt/keyrings/teams-for-linux.asc.

[IsmaelMartinez]

not a problem and thanks for reporting it. Surely it might help someone else in the future.