[Bug 1792704] [NEW] package grub-pc 2.02-2ubuntu8.4 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 1

Public bug reported: during upgrade from 17.1 to 18.04 ProblemType: Package DistroRelease: Ubuntu 18.04 Package: grub-pc 2.02-2ubuntu8.4 ProcVersionSignature: Ubuntu 4.13.0-38.43-generic 4.13.16 Uname: Linux 4.13.0-38-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.3 Architecture: amd64 Date: Sat S

[Bug 1576254] [NEW] package systemd-sysv 229-4ubuntu4 failed to install/upgrade: pre-dependency problem - not installing systemd-sysv

Public bug reported: trying to use dist upgrade to 16.04 ProblemType: Package DistroRelease: Ubuntu 16.04 Package: systemd-sysv 229-4ubuntu4 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Thu Apr