[Bug 1920640] Re: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>

[thedoctar]

I have a similar error

Ign:16 http://ddebs.ubuntu.com focal-updates Release.gpg                                                              
Err:17 http://ddebs.ubuntu.com focal Release.gpg                                                
  The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>
Err:19 http://ddebs.ubuntu.com focal-proposed Release.gpg                 
  The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>
Hit:18 https://packagecloud.io/slacktechnologies/slack/debian jessie InRelease       
Reading package lists... Done
E: The repository 'http://ddebs.ubuntu.com focal-updates Release' is no longer 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: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ddebs.ubuntu.com focal Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ddebs.ubuntu.com focal-proposed Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>

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https://bugs.launchpad.net/bugs/1920640

Title:
  EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic
  Signing Key (2016) <ubuntu-archive at 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-archive at 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-archive at 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-archive at 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.

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