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

[Trent Lloyd]

Updated the following wiki pages:
https://wiki.ubuntu.com/Debug%20Symbol%20Packages
https://wiki.ubuntu.com/DebuggingProgramCrash

With the note:
Note: The GPG key expired on 2021-03-21 and may need updating by either upgrading the ubuntu-dbgsym-keyring package or re-running the apt-key command. Please see Bug #1920640 for workaround details if that does not work.

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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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