Hi, I’m using Raspbian GNU/Linux 10 (buster) on a raspberry pi 3b and upgrading the packages by sudo apt update, but the update failed due to the signature verification failed. Am I doing something wrong or what’s happening? Thanks.
Here’s the log:
pi@raspberrypi:~ $ sudo apt update
Hit:1 http://raspbian.raspberrypi.org/raspbian buster InRelease
Hit:2 http://archive.raspberrypi.org/debian buster InRelease
Get:3 https://zk-sw-repo.s3.amazonaws.com/apt-repo-buster buster InRelease [2500 B]
Err:3 https://zk-sw-repo.s3.amazonaws.com/apt-repo-buster buster InRelease
The following signatures were invalid: EXPKEYSIG CAA5E9C8755D21A0 scott@zymbit.com
Fetched 2500 B in 2s (1136 B/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done
131 packages can be upgraded. Run 'apt list --upgradable' to see them.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://zk-sw-repo.s3.amazonaws.com/apt-repo-buster buster InRelease: The following signatures were invalid: EXPKEYSIG CAA5E9C8755D21A0 scott@zymbit.com
W: Failed to fetch https://zk-sw-repo.s3.amazonaws.com/apt-repo-buster/dists/buster/InRelease The following signatures were invalid: EXPKEYSIG CAA5E9C8755D21A0 scott@zymbit.com
W: Some index files failed to download. They have been ignored, or old ones used instead.