Fabian Lee : Software Engineer

Ubuntu: fixing apt invalid signature warnings

December 21, 2022
Categories: Linux

If you have warning messages coming from apt about an invalid signature verification and EXPKEYSIG, then it is likely that a signing key for one of the remote apt repo has expired. Below is an example coming from an expired podman package at the “download.opensuse.org” repo. W: An error occurred during the signature verification. The … Ubuntu: fixing apt invalid signature warnings

Ubuntu: apt-get error, yarn signature verification

January 13, 2019
Categories: Linux

If you attempt an “apt-get update” and get a signature verification error from “dl.yarnpkg.com”, the problem is most likely an expired key. This can be resolved by reloading the new public key from the site: # add latest key curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add – # try refresh again sudo apt-get update Below … Ubuntu: apt-get error, yarn signature verification