That version is now dead http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml
** Changed in: ca-certificates (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ca-certificates in Ubuntu. https://bugs.launchpad.net/bugs/1659953 Title: package ca-certificates 20161130 failed to install/upgrade: triggers looping, abandoned Status in ca-certificates package in Ubuntu: Invalid Bug description: ..... ProblemType: Package DistroRelease: Ubuntu 17.04 Package: ca-certificates 20161130 Uname: Linux 4.9.6-040906-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.4-0ubuntu1 Architecture: amd64 Date: Fri Jan 27 22:09:16 2017 ErrorMessage: triggers looping, abandoned InstallationDate: Installed on 2017-01-27 (0 days ago) InstallationMedia: Xubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) PackageArchitecture: all RelatedPackageVersions: dpkg 1.18.10ubuntu1 apt 1.4~beta4ubuntu1 SourcePackage: ca-certificates Title: package ca-certificates 20161130 failed to install/upgrade: triggers looping, abandoned UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ca-certificates/+bug/1659953/+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