Ubuntu
shim-signed package

  1. Bug #1774646
  2. Comment #4

Comment 4 for bug 1774646

Revision history for this message
Steve Langasek (vorlon) wrote : Re: package shim-signed 1.35+13-0ubuntu2 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

> Ubiquity seems to have decided that it was installing on a uefi-machine.

And it was almost certainly correct, but the installation of the UEFI bootloader failed because your disk did not have an EFI System Partition to install to. Your 18.10 install was only bootable afterwards because you previously had BIOS GRUB installed to your MBR.