package grub-efi-amd64-signed 1.128.2+2.04-1ubuntu12.2 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1

[glennzo]

Error happened at the end of a package update initiated by me at the command line.

Here are the last few lines of output from that update:

Processing triggers for libglib2.0-0:amd64 (2.62.4-1~ubuntu19.10.2) ...
Processing triggers for libc-bin (2.30-0ubuntu2.1) ...
Processing triggers for man-db (2.8.7-3) ...
Processing triggers for dbus (1.12.14-1ubuntu2) ...
Setting up gnome-shell (3.34.3-1ubuntu1~19.10.1) ...
Processing triggers for initramfs-tools (0.133ubuntu10) ...
update-initramfs: Generating /boot/initrd.img-5.3.0-51-generic
Errors were encountered while processing:
 grub-efi-amd64-signed
 shim-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)

I am using rEFInd as a boot loader. I suspect that my Ubuntu install has some sort of issue with that.

Description: Ubuntu 19.10
Release: 19.10

dpkg:
  Installed: 1.19.7ubuntu2
  Candidate: 1.19.7ubuntu2
  Version table:
 *** 1.19.7ubuntu2 500
        500 http://us.archive.ubuntu.com/ubuntu eoan/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Package
DistroRelease: Ubuntu 19.10
Package: grub-efi-amd64-signed 1.128.2+2.04-1ubuntu12.2
ProcVersionSignature: Ubuntu 5.3.0-51.44-generic 5.3.18
Uname: Linux 5.3.0-51-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu8.8
Architecture: amd64
Date: Wed May 13 21:46:31 2020
ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
Python3Details: /usr/bin/python3.7, Python 3.7.5, python3-minimal, 3.7.5-1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu2
 apt 1.9.4
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.128.2+2.04-1ubuntu12.2 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[glennzo (gjohnz)]

I see by the logs that there is "no space left" on the boot device /dev/sdd1 which is a very small capacity thumb drive for rEFInd.

I believe that this can be resolved by removing grub from my Ubuntu install. It is not needed.