Verified by running echo TEST1815761 as the hook, across all releases with their SRU versions (as shown in the log below).
$ lxc exec apt-cosmic -- apt upgrade apt -tnow -o APT::Install::Post-Invoke-Success::="/bin/echo TEST1815761" Reading package lists... Done Building dependency tree Reading state information... Done apt is already the newest version (1.7.3). apt set to manually installed. Calculating upgrade... Done The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. TEST1815761 $ lxc exec apt-bionic -- apt upgrade apt -tnow -o APT::Install::Post-Invoke-Success::="/bin/echo TEST1815761" Reading package lists... Done Building dependency tree Reading state information... Done apt is already the newest version (1.6.9). Calculating upgrade... Done The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. TEST1815761 $ lxc exec apt-xenial -- apt upgrade apt -tnow -o APT::Install::Post-Invoke-Success::="/bin/echo TEST1815761" Reading package lists... Done Building dependency tree Reading state information... Done apt is already the newest version (1.2.30). Calculating upgrade... Done The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. TEST1815761 $ lxc exec apt-trusty -- apt upgrade apt -tnow -o APT::Install::Post-Invoke-Success::="/bin/echo TEST1815761" Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done apt is already the newest version. The following packages were automatically installed and are no longer required: libfreetype6 os-prober Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. TEST1815761 $ lxc exec apt-trusty -- apt-cache policy apt #apt upgrade apt -tnow -o APT::Install::Post-Invoke-Success::="/bin/echo TEST1815761" apt: Installed: 1.0.1ubuntu2.21 Candidate: 1.0.1ubuntu2.21 Version table: *** 1.0.1ubuntu2.21 0 500 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 Packages 100 /var/lib/dpkg/status ** Tags removed: verification-needed verification-needed-bionic verification-needed-cosmic verification-needed-trusty verification-needed-xenial ** Tags added: verification-done verification-done-bionic verification-done-cosmic verification-done-trusty verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1815761 Title: Alternative to Dpkg::Post-Invoke that runs even if dpkg did not have to be invoked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1815761/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs