Public bug reported: I dont know details. It just apear during the update.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19 ProcVersionSignature: Ubuntu 4.10.0-35.39~16.04.1-generic 4.10.17 Uname: Linux 4.10.0-35-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 Date: Wed Nov 14 09:28:59 2018 DuplicateSignature: package:grub-efi-amd64-signed:1.66.19+2.02~beta2-36ubuntu3.19 Setting up grub-efi-amd64-signed (1.66.19+2.02~beta2-36ubuntu3.19) ... grub-install: erro: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory. dpkg: error processing package grub-efi-amd64-signed (--configure): subprocess installed post-installation script returned error exit status 1 ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2017-09-25 (414 days ago) InstallationMedia: Ubuntu-GNOME 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801) RelatedPackageVersions: dpkg 1.18.4ubuntu1.5 apt 1.2.29 SourcePackage: grub2-signed Title: package grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1803336 Title: package grub-efi-amd64-signed 1.66.19+2.02~beta2-36ubuntu3.19 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/1803336/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs