Ign:1 https://storage.googleapis.com/cros-packages/91 buster InRelease
Hit:2 https://storage.googleapis.com/cros-packages/91 buster Release
Hit:3 https://deb.debian.org/debian buster InRelease
Get:5 http://download.opensuse.org/repositories/home:/strycore/Debian_10 InRelease [1,497 B]
Hit:6 https://deb.debian.org/debian-security buster/updates InRelease
Err:5 http://download.opensuse.org/repositories/home:/strycore/Debian_10 InRelease
The following signatures were invalid: EXPKEYSIG 2F7F0DA5FD5B64B9 home:strycore OBS Project <home:strycore@build.opensuse.org>
Reading package lists... Done
W: GPG error: http://download.opensuse.org/repositories/home:/strycore/Debian_10 InRelease: The following signatures were invalid: EXPKEYSIG 2F7F0DA5FD5B64B9 home:strycore OBS Project <home:strycore@build.opensuse.org>
E: The repository 'http://download.opensuse.org/repositories/home:/strycore/Debian_10 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.
The following signatures were invalid: EXPKEYSIG 2F7F0DA5FD5B64B9 home:strycore OBS Project <home:strycore@build.opensuse.org>
The repository 'http://download.opensuse.org/repositories/home:/strycore/Debian_10 InRelease' is not signed
I’m having the same issue, but with Lutris installed on Debian Testing. Was running Updates earlier and got the same error message.
Err:1 http://download.opensuse.org/repositories/home:/strycore/Debian_Testing InRelease
The following signatures were invalid: EXPKEYSIG 2F7F0DA5FD5B64B9 home:strycore OBS Project <home:strycore@build.opensuse.org>
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://download.opensuse.org/repositories/home:/strycore/Debian_Testing InRelease: The following signatures were invalid: EXPKEYSIG 2F7F0DA5FD5B64B9 home:strycore OBS Project <home:strycore@build.opensuse.org>
W: Failed to fetch http://download.opensuse.org/repositories/home:/strycore/Debian_Testing/InRelease The following signatures were invalid: EXPKEYSIG 2F7F0DA5FD5B64B9 home:strycore OBS Project <home:strycore@build.opensuse.org>
W: Some index files failed to download. They have been ignored, or old ones used instead.
Hi, if for any reason you are facing the same issue in Debian 12, is because the Key has expired 2025-10-23. Instead use the Release.key file from the Debian_Testing Repository: