Re: New TeXmacs version 2.1.5

>Hi Liza,
>
>thanks for the quick answer.
>
>Yes I did. Copy-paste and enter to execute.

Same here:

[sources.list.d]> sudo wget -qO- --no-check-certificate https://ftp.texmacs.org/TeXmacs/tmftp/repos/apt/apt-texmacs.asc | sudo tee /usr/share/keyrings/texmacs-keyring.asc > /dev/null
[sources.list.d]> echo "deb [signed-by=/usr/share/keyrings/texmacs-keyring.asc] http://ftp.texmacs.org/TeXmacs/tmftp/repos/apt/ $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/texmacs.list > /dev/null
[sources.list.d]> sudo apt-get update
Hit:2 http://archive.ubuntu.com/ubuntu questing InRelease                                                                     
Hit:3 http://security.ubuntu.com/ubuntu questing-security InRelease                                                           
Hit:4 http://archive.ubuntu.com/ubuntu questing-updates InRelease                                                   
Hit:5 http://archive.ubuntu.com/ubuntu questing-backports InRelease                          
Hit:6 https://packages.mozilla.org/apt mozilla InRelease                                     
Get:1 https://ftp.texmacs.org/TeXmacs/tmftp/repos/apt questing InRelease [3,405 B]
Err:1 https://ftp.texmacs.org/TeXmacs/tmftp/repos/apt questing InRelease
   The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8CADE14440A2D6D6
Reading package lists... Done
W: http://ftp.texmacs.org/TeXmacs/tmftp/repos/apt/dists/questing/InRelease: The key(s) in the keyring /usr/share/keyrings/texmacs-keyring.asc are ignored as the file has an unsupported filetype.
W: OpenPGP signature verification failed: https://ftp.texmacs.org/TeXmacs/tmftp/repos/apt questing InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8CADE14440A2D6D6
E: The repository 'http://ftp.texmacs.org/TeXmacs/tmftp/repos/apt questing InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
[sources.list.d]>