Given the age of this, I am going to mark won't fix, but please re-open if you think I am wrong.
** Changed in: systemd (Ubuntu) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1605941 Title: /usr/share/initramfs-tools/hooks/udev fails if /etc/udev/rules.d contains directories Status in systemd package in Ubuntu: Won't Fix Bug description: update-initramfs: Generating /boot/initrd.img-4.4.0-28-generic cp: omitting directory '/etc/udev/rules.d/10-network.rules' E: /usr/share/initramfs-tools/hooks/udev failed with return 1. update-initramfs: failed for /boot/initrd.img-4.4.0-28-generic with 1. ProblemType: Package DistroRelease: Ubuntu 16.04 Package: initramfs-tools 0.122ubuntu8.1 ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13 Uname: Linux 4.4.0-28-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 Date: Sat Jul 23 15:50:43 2016 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2016-06-27 (26 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) PackageArchitecture: all RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.12~ubuntu16.04.1 SourcePackage: initramfs-tools Title: package initramfs-tools 0.122ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1605941/+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