I tested this on Bionic (albeit using Ubuntu Error Tracker retracing systems) and updating the ubuntu-dbgsym-kerying from -proposed allowed them to retrace crashes again so setting to verification-done.
2021-03-26 17:15:33,167:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Processing. 2021-03-26 17:15:33,219:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Decompressing to /tmp/tmprCylMh-swift.6d1 acc70-8e56-11eb-8af4-fa163e9b80e2.oopsid.core 2021-03-26 17:15:33,314:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Retracing 6d1acc70-8e56-11eb-8af4-fa163e9 b80e2:swift with sandbox-dir /srv/daisy.staging.ubuntu.com/devel/cache/Ubuntu 21.04/cache-uUsGBd/sandbox with cache /srv/daisy.staging.ubunt u.com/devel/cache/Ubuntu 21.04/cache-uUsGBd/cache 2021-03-26 17:15:36,471:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Apport's return code was 1. 2021-03-26 17:15:36,471:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:ERROR: W:Download is performed unsandboxe d as root as file '/srv/daisy.staging.ubuntu.com/devel/cache/Ubuntu 21.04/cache-uUsGBd/cache/Ubuntu 21.04/apt/var/lib/apt/lists/partial/arch ive.ubuntu.com_ubuntu_dists_hirsute_InRelease' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied), W:GPG error: http://ddebs.ubuntu.com hirsute Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Autom atic Signing Key (2016) <ubuntu-arch...@lists.ubuntu.com>, E:The repository 'http://ddebs.ubuntu.com hirsute Release' is not signed., W:Upda ting from such a repository can't be done securely, and is therefore disabled by default., W:See apt-secure(8) manpage for repository creati on and user configuration details., W:GPG error: http://ddebs.ubuntu.com hirsute-updates Release: The following signatures were invalid: EXP KEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-arch...@lists.ubuntu.com>, E:The repository 'http:/ /ddebs.ubuntu.com hirsute-updates Release' is not signed. 2021-03-26 17:15:36,471:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Will retry (6d1acc70-8e56-11eb-8af4-fa163 e9b80e2) due to a transient error. 2021-03-26 17:15:36,473:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Processing. 2021-03-26 17:15:36,657:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Decompressing to /tmp/tmpaSBRUl-swift.6d1 acc70-8e56-11eb-8af4-fa163e9b80e2.oopsid.core 2021-03-26 17:15:36,751:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Retracing 6d1acc70-8e56-11eb-8af4-fa163e9 b80e2:swift with sandbox-dir /srv/daisy.staging.ubuntu.com/devel/cache/Ubuntu 21.04/cache-uUsGBd/sandbox with cache /srv/daisy.staging.ubunt u.com/devel/cache/Ubuntu 21.04/cache-uUsGBd/cache 2021-03-26 17:16:35,063:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Writing back to Cassandra 2021-03-26 17:16:35,150:19962:140010884187968:INFO:root:6d1acc70-8e56-11eb-8af4-fa163e9b80e2:swift:Successfully retraced. ubuntu@juju-1124ad-devel-error-tracker-9:/srv/daisy.staging.ubuntu.com/devel-logs$ apt-cache policy ubuntu-dbgsym-keyring ubuntu-dbgsym-keyring: Installed: 2018.09.18.1~18.04.1 Candidate: 2018.09.18.1~18.04.1 Version table: *** 2018.09.18.1~18.04.1 500 500 http://archive.ubuntu.com/ubuntu bionic-proposed/universe amd64 Packages 100 /var/lib/dpkg/status 2018.09.18.1~18.04.0 500 500 http://prodstack-zone-2.clouds.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages 2018.02.28 500 500 http://prodstack-zone-2.clouds.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages ** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- 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: Fix Released Status in ubuntu-keyring source package in Bionic: Fix Committed Status in ubuntu-keyring source package in Focal: Fix Committed Status in ubuntu-keyring source package in Groovy: Fix Committed Status in ubuntu-keyring source package in Hirsute: Fix Released Bug description: [Impact] * Cannot update apt metadata from ddebs.ubuntu.com whilst using ubuntu-dbgsym-keyring package [Test Plan] * Install ubuntu-dbgsym-keyring package * Add ddebs.ubuntu.com repository for your release * sudo apt update must be successful [Where problems could occur] * At the moment the signature was bumped by one year * Meaning this issue will occur again in 2022 * Instead the key must be set to not expire & new round of SRUs issued [Other Info] * Original bug report 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