You have been subscribed to a public bug:
Following a restart of Ubuntu server to finish updates, the computer is stuck
at the grub boot screen. Selecting ubuntu to start unly returns the computer to
the grub screen.
The computer is a virtual machine running on Hyper-V (windows server 16).
The computer starts correctly if the network card is disconnected during the
first part of the boot process.
The same issue has occurred on both desktop and server VMs.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.30
ProcVersionSignature: Ubuntu 5.4.0-90.101-generic 5.4.148
Uname: Linux 5.4.0-90-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
Date: Sun Nov 14 22:22:45 2021
InstallationDate: Installed on 2021-07-16 (121 days ago)
InstallationMedia: Ubuntu-Server 20.04.2 LTS "Focal Fossa" - Release amd64
(20210201.2)
PackageArchitecture: all
ProcEnviron:
TERM=linux
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug dist-upgrade focal uec-images
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Following update, grub stuck in loop.
https://bugs.launchpad.net/bugs/1950921
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