System freeze during upgrade from 21.10 to 22.04 beta

[Nicholas Harvey]

I am running two laptops with 21.10 and have upgraded both to 22.04 using the following commands:

sudo apt update; sudo apt upgrade
sudo update-manager -d

THe update manager wizard starts fine and gets about half way through installing new packages. At this point the screen went blank with just a cursor, followed by my Dell system logo (i.e. looking as if it was rebooting). However the system had frozen at this point and required a power cycle to recover.

I then used the grub menu to access the restore session and used the dpkg repair option to complete the package installations. When done I rebooted the laptops and the upgrade appears to have completed OK.

This will need to be investigated and solved for mainstream release as most users will not wish to manually restore the upgrade in this way.

Thanks
Nick

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubuntu-release-upgrader-core 1:22.04.7
ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
Uname: Linux 5.15.0-23-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu79
Architecture: amd64
CasperMD5CheckResult: pass
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 31 18:54:11 2022
InstallationDate: Installed on 2022-02-28 (31 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)

[Nick Rosbrook (enr0n)]

This sounds like a duplicate of bug 1966317. Are there any .crash files in /var/crash?

[Nicholas Harvey (mobile-harvey)]

Yes there is - I have just attached it.