Same here. I downloaded ca-certificates_20170717~16.04.1_all.deb from https://packages.ubuntu.com/xenial/all/ca-certificates/download
Then did a: dpkg -i ca-certificates_20170717~16.04.1_all.deb dpkg --configure -a After that I did a: sudo apt-get upgrade Which upgraded to 20180409 without problems -- 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/1767453 Title: package ca-certificates 20180409 failed to install/upgrade: installed ca-certificates package post-installation script subprocess returned error exit status 1 Status in ca-certificates package in Ubuntu: Confirmed Bug description: Happened during upgrade to ubunut 18.04 ProblemType: Package DistroRelease: Ubuntu 18.04 Package: ca-certificates 20180409 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: Fri Apr 27 17:51:26 2018 ErrorMessage: installed ca-certificates package post-installation script subprocess returned error exit status 1 PackageArchitecture: all 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: ca-certificates Title: package ca-certificates 20180409 failed to install/upgrade: installed ca-certificates package post-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to bionic on 2018-04-27 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ca-certificates/+bug/1767453/+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
