I see that this is a result of LP #1764794, I've adjusted my copy debian-installer source package to compensate (using bionic version as a template).
This however, should be fixed for xenial if there is going to be another point release. ** Summary changed: - xenial 4.4.0-145 image udeb overwrites unsigned image + Adjust xenial d-i builds to only used signed kernel image ** Package changed: linux-signed (Ubuntu) => debian-installer (Ubuntu) ** Summary changed: - Adjust xenial d-i builds to only used signed kernel image + Adjust xenial d-i builds to only use signed kernel image -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed in Ubuntu. https://bugs.launchpad.net/bugs/1823074 Title: Adjust xenial d-i builds to only use signed kernel image Status in debian-installer package in Ubuntu: New Bug description: The payload in the xenial package kernel-signed-image-4.4.0-145 -generic-di_4.4.0-145.171_amd64.udeb doesn't have the proper suffix and overwrites the unsigned version of the same kernel image: (from data.tar.xz from the package): ./ ./boot/ ./boot/vmlinuz-4.4.0-145-generic It should be ./ ./boot/ ./boot/vmlinuz-4.4.0-145-generic.efi.signed This was found while trying to build out a set of installer images via building the debian-installer source package from xenial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1823074/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp