You might also want to try this:
https://linux-audit.com/how-to-solve-an-expired-key-keyexpired-with-apt/
https://futurestud.io/tutorials/fix-ubuntu-debian-apt-get-keyexpired-the-following-signatures-were-invalid
https://www.reddit.com/r/debian/comments/g9is3p/debian_8_jessie_keyexpired_drive_my_crazy/
Regards,
Jeroen
Rick Thomas schreef op 2020-06-23 07:53:
On Mon, Jun 22, 2020, at 12:18 AM, Jeroen Diederen wrote:
Make it
deb http://archive.debian.org/debian/ jessie main contrib non-free
Beste regards,
Jeroen Diederen
Thanks. it looks like this now
deb http://archive.debian.org/debian/ jessie main non-free contrib
I have no idea how the [1] got in there.
but I still get the Warning.
Rick