Public bug reported: In fact,I don't know what happened.I just choose the option to update my software and then the error message pop up.
ProblemType: Package DistroRelease: Ubuntu 16.04 Package: grub-efi-amd64-signed 1.66.23+2.02~beta2-36ubuntu3.23 ProcVersionSignature: Ubuntu 4.15.0-68.77~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-68-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.21 Architecture: amd64 Date: Tue Nov 12 13:33:51 2019 DuplicateSignature: package:grub-efi-amd64-signed:1.66.23+2.02~beta2-36ubuntu3.23 Setting up grub-efi-amd64-signed (1.66.23+2.02~beta2-36ubuntu3.23) ... grub-install:错误: /usr/local/lib/grub/x86_64-efi/modinfo.sh 不存在。请指定 --target 或 --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 2019-09-15 (57 days ago) InstallationMedia: Ubuntu 16.04.5 LTS "Xenial Xerus" - Release amd64 (20180731) RelatedPackageVersions: dpkg 1.18.4ubuntu1.6 apt 1.2.32 SourcePackage: grub2-signed Title: package grub-efi-amd64-signed 1.66.23+2.02~beta2-36ubuntu3.23 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to xenial on 2019-10-31 (12 days ago) ** 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/1852167 Title: package grub-efi-amd64-signed 1.66.23+2.02~beta2-36ubuntu3.23 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/1852167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs