I could not reproduce this with that file in my lxd testing setup either. It might depend on PPA packages changing the order. That said, fixing the trigger to be noawait is definitely the right thing to do-
** Changed in: menu (Ubuntu) Status: Confirmed => In Progress -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1768905 Title: package menu 2.1.47ubuntu2 failed to install/upgrade: dependency problems - leaving triggers unprocessed Status in apt package in Ubuntu: Incomplete Status in menu package in Ubuntu: In Progress Bug description: I get this error when I update to 18.04 ProblemType: Package DistroRelease: Ubuntu 18.04 Package: menu 2.1.47ubuntu2 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 Date: Thu May 3 16:51:28 2018 Dependencies: gcc-8-base 8-20180414-1ubuntu2 libc6 2.27-3ubuntu1 libgcc1 1:8-20180414-1ubuntu2 libstdc++6 8-20180414-1ubuntu2 ErrorMessage: dependency problems - leaving triggers unprocessed InstallationDate: Installed on 2018-04-11 (22 days ago) InstallationMedia: Ubuntu-MATE 17.10 "Artful Aardvark" - Release amd64 (20180106) Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3 PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1 RelatedPackageVersions: dpkg 1.19.0.5ubuntu2 apt 1.6.1 SourcePackage: menu Title: package menu 2.1.47ubuntu2 failed to install/upgrade: dependency problems - leaving triggers unprocessed UpgradeStatus: Upgraded to bionic on 2018-05-03 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1768905/+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