Public bug reported: please try
ProblemType: Package DistroRelease: Ubuntu 15.04 Package: grub-efi-amd64-signed 1.46.5+2.02~beta2-22ubuntu1.5 Uname: Linux 4.1.0-040100rc2-generic x86_64 ApportVersion: 2.17.2-0ubuntu1.8 Architecture: amd64 Date: Tue Jan 12 05:38:29 2016 DuplicateSignature: package:grub-efi-amd64-signed:1.46.5+2.02~beta2-22ubuntu1.5:subprocess installed post-installation script returned error exit status 1 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2015-10-14 (89 days ago) InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1) RelatedPackageVersions: dpkg 1.17.25ubuntu1.1 apt 1.0.9.7ubuntu4.2 SourcePackage: grub2-signed Title: package grub-efi-amd64-signed 1.46.5+2.02~beta2-22ubuntu1.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to vivid on 2016-01-11 (0 days ago) ** Affects: grub2-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package need-duplicate-check vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1532970 Title: package grub-efi-amd64-signed 1.46.5+2.02~beta2-22ubuntu1.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1532970/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs