Ubuntu GPG key expired error - jinwooklim/my-exp GitHub Wiki

Reference

• https://cloud.google.com/compute/docs/troubleshooting/known-issues?hl=ko

ubuntu 18.04 에서 package update를 하던 중, 예전에 설치한 kubernetes-xenial 부분에서 key error가 발생했다.
따라서, 이를 결한 방법이다.

Error

W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used.
GPG error: https://packages.cloud.google.com/apt kubernetes-xenial InRelease:
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B57C5C2836F4BEB NO_PUBKEY FEEA9169307EA071
W: Failed to fetch http://apt.kubernetes.io/dists/kubernetes-xenial/InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B57C5C2836F4BEB NO_PUBKEY FEEA9169307EA071
W: Some index files failed to download. They have been ignored, or old ones used instead.

or

W: An error occurred during the signature verification.
The repository is not updated and the previous index files will be used.
GPG error: http://packages.cloud.google.com/apt cloud-sdk-stretch InRelease:
The following signatures were invalid: EXPKEYSIG 3746C208A7317B0F
Google Cloud Packages Automatic Signing Key <[email protected]>

Solution

curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -