Public bug reported: Same bug as already reported but with a bit more information:
this error started being reported immediately after upgrading from Ubuntu 16.10 to 17.04. grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist. Please specify --target or --directory ProblemType: Package DistroRelease: Ubuntu 17.04 Package: grub-efi-amd64-signed 1.80+2.02~beta3-4ubuntu2 ProcVersionSignature: Ubuntu 4.8.0-51.54-generic 4.8.17 Uname: Linux 4.8.0-51-generic x86_64 ApportVersion: 2.20.4-0ubuntu4.1 Architecture: amd64 Date: Sun Jun 4 07:55:12 2017 DuplicateSignature: package:grub-efi-amd64-signed:1.80+2.02~beta3-4ubuntu2 Setting up grub-efi-amd64-signed (1.80+2.02~beta3-4ubuntu2) ... grub-install: error: /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 2015-07-01 (703 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) RelatedPackageVersions: dpkg 1.18.10ubuntu2 apt 1.4 SourcePackage: grub2-signed Title: package grub-efi-amd64-signed 1.80+2.02~beta3-4ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to zesty on 2017-06-03 (0 days ago) ** Affects: grub2-signed (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1695664 Title: package grub-efi-amd64-signed 1.80+2.02~beta3-4ubuntu2 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/1695664/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs