Public bug reported: Original =installation not clean, under emergency activation with external disks.
Possible initiation of difficulties 6 month ago when passing from ubuntu 14.04 to 16.04 (either overflow of partition, or bad transition from graphic server (mixed things between Lubuntu; Xubuntu and Ubuntu. Initial emergency solution from september , maybe with a 32bits systeme on secondary hard-drive, but activation of previous /home directory (probably 64bits). Manual adjustment of grub.cfg in ordre to get access to xubuntu18.04 (from external amovible backup disk. ProblemType: Package DistroRelease: Ubuntu 18.04 Package: grub-pc 2.02-2ubuntu8.9 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 Date: Tue Dec 18 23:28:35 2018 ErrorMessage: installed grub-pc package post-installation script subprocess returned error exit status 1 InstallationDate: Installed on 2018-12-18 (0 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) InvalidGrubScript: /etc/grub.d/39_custom (copie) /etc/grub.d/40_custom ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=0beca069-d781-439a-8538-c4fc07172aaa ro quiet splash Python3Details: /usr/bin/python3.6, Python 3.6.7, python3-minimal, 3.6.7-1~18.04 PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1 RelatedPackageVersions: dpkg 1.19.0.5ubuntu2.1 apt 1.6.6 SourcePackage: grub2 Title: package grub-pc 2.02-2ubuntu8.9 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-package bionic need-duplicate-check -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1809050 Title: package grub-pc 2.02-2ubuntu8.9 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1809050/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs