I've tried replacing sources.list using this among other things I tried. I would just like to reset things back to normal as I messed this while uninstalling virtualbox,kubectl. W: GPG error: bionic-updates InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY Į: The repository ' bionic-updates InRelease' is not signed.Īll install commands failing because of this I believe. W: GPG error: bionic-security InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32Į: The repository ' bionic-security InRelease' is not signed. The packages mentioned in the following line have newer versions available no the repo and once you press Y (for yes) and press the Enter button, the apt application will download and install the updated packages on your Linux machine as shown in the screenshot below. N: See apt-secure(8) manpage for repository creation and user configuration details.

N: Updating from such a repository can't be done securely, and is therefore disabled by default. W: GPG error: bionic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32Į: The repository ' bionic InRelease' is not signed. The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32 Below is the o/p for sudo apt-get update: /etc/apt$ sudo apt-get update

Aptget update