It was so annoying. Computer wanted to install some updates, I agreed, computer wanted restart I again agreed. After reboot computer was not able to boot. I spend almost two hours fix the computer and be able return to work. Following instruction on this post fix the problem https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1798171/comments/51 Update was triggered by automatically opened window which ask for admin privileges. Not by sudo apt update && sudo apt upgrade
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.36
ProcVersionSignature: Ubuntu 4.15.0-76.86-generic 4.15.18
Uname: Linux 4.15.0-76-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: GNOME
Date: Fri Jan 31 22:46:10 2020
InstallationDate: Installed on 2018-10-30 (458 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
CurrentDesktop: GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-10-30 (458 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
Package: grub2 (not installed)
ProcVersionSignature: Ubuntu 4.15.0-76.86-generic 4.15.18
Tags: bionic
Uname: Linux 4.15.0-76-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
Thank you for taking the time to report this issue and helping to make Ubuntu better.
I see no evidence of you trying to perform a release-upgrade (ie. bump yourself to a later release of Ubuntu) which is the purpose of the ubuntu-
When you filed the bug it tried to grab information about your upgrade from 18.04 to a later release, and not about your grub.
Please execute the following command only once, as it will automatically gather debugging information better suited to your I believe 'grub' issue, in a terminal:
apport-collect 1861531
Thank you for your time, and helping make Ubuntu better.