Reverified with 1.7.4 and 1.6.10
$ lxc exec apt-bionic -- apt -o AptCli::Hooks::Install::="/usr/bin/printf '{error should be json}\n\n' >&3" install Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. E: Hook /usr/bin/printf '{error should be json}\n\n' >&3 reported an error during hello: {error should be json} E: Hook /usr/bin/printf '{error should be json}\n\n' >&3 reported an error during hello: {error should be json} $ lxc exec apt-cosmic -- apt -o AptCli::Hooks::Install::="/usr/bin/printf '{error should be json}\n\n' >&3" install Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. E: Hook /usr/bin/printf '{error should be json}\n\n' >&3 reported an error during hello: {error should be json} E: Hook /usr/bin/printf '{error should be json}\n\n' >&3 reported an error during hello: {error should be json} ** Tags removed: verification-needed verification-needed-bionic verification-needed-cosmic ** Tags added: verification-done verification-done-bionic verification-done-cosmic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1814543 Title: deal with EPIPE from json hooks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1814543/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs