[Bug 1751382] [NEW] package grub-common 2.02~beta3-4ubuntu7.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

Public bug reported: Crashed on updating ProblemType: Package DistroRelease: Ubuntu 17.10 Package: grub-common 2.02~beta3-4ubuntu7.2 ProcVersionSignature: Ubuntu 4.13.0-36.40-generic 4.13.13 Uname: Linux 4.13.0-36-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia

[Bug 1793938] [NEW] could not upgrade from 16.04 to 18.04

Public bug reported: Checking for a new Ubuntu release Get:1 Upgrade tool signature [819 B] Get:2 Upgrade tool [1,258 kB] Fetched 1,259 kB in 0s (0 B/s)