Just to make the current status clear from what I can gather: - The GPG key was extended by 1 year to 2022-03-21
- On Ubuntu Bionic (18.04) and newer the GPG key is normally installed by the ubuntu-dbgsym-keyring package (on 18.04 Bionic onwards). This package is not yet updated. An update to this package is required and still pending. - On Ubuntu Xenial (16.04) users typically imported the key from keyserver.ubuntu.com. As that is not yet updated, you will need to import the key from HTTP using the workaround below which will work as a temporary workaround on all Ubuntu releases. Once keyserver.ubuntu.com is updated, you could also use "sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F2EDC64DC5AEE1F6B9C621F0C8CAB6595FDFF622" - The updated GPG key is not currently published to keyserver.ubuntu.com - The updated GPG key is available at http://ddebs.ubuntu.com/dbgsym- release-key.asc - As a workaround you can import that key to apt using "wget -O - http://ddebs.ubuntu.com/dbgsym-release-key.asc | sudo apt-key add -" (note: you need a space between the -O and -, contrary to the previously pasted comment) - I believe that the key likely needs to be extended longer and published to all resources including the ubuntu-dbgsym-keyring package and keyserver.ubuntu.com -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-keyring in Ubuntu. https://bugs.launchpad.net/bugs/1920640 Title: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-arch...@lists.ubuntu.com> Status in ubuntu-keyring package in Ubuntu: Confirmed Bug description: The public key used by the debugging symbols repository /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg from the package ubuntu- dbgsym-keyring expired. $ apt policy ubuntu-dbgsym-keyring ubuntu-dbgsym-keyring: Installed: 2020.02.11.2 Candidate: 2020.02.11.2 Version table: *** 2020.02.11.2 500 500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu focal/main i386 Packages 100 /var/lib/dpkg/status $ gpg --no-default-keyring --keyring /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg --list-keys /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg --------------------------------------------- pub rsa4096 2016-03-21 [SC] [expired: 2021-03-20] F2EDC64DC5AEE1F6B9C621F0C8CAB6595FDFF622 uid [ expired] Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-arch...@lists.ubuntu.com> Error message on "apt update": E: The repository 'http://ddebs.ubuntu.com bionic-updates Release' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. W: GPG error: http://ddebs.ubuntu.com bionic Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-arch...@lists.ubuntu.com> E: The repository 'http://ddebs.ubuntu.com bionic Release' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. W: GPG error: http://ddebs.ubuntu.com bionic-proposed Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-arch...@lists.ubuntu.com> E: The repository 'http://ddebs.ubuntu.com bionic-proposed Release' is not signed. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-keyring/+bug/1920640/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
