stuck while booting since 20.04.3 LTS upgrade

Asked by Andreas Bunzel

After the upgrade to 20.04.3 LTS booting doesn't work.

In the booting process (using the latest kernel) the computer stuck,
showing a purple screen:
                              UBUNTU 20.04
                               . . . . .

(sometimes the dots indicating "i'm busy" by changing color, sometimes the dots are frozen)

To get the Computer running i have to try it many times, booting with different kernels - if the booting process is successful it shows the familiar black screen with the ubuntu logo and the animated circle.

I have already repaired the grub (option in recovery mode) and after that re installed ubuntu completely, but the (unsteady) booting problem still appears.

Last time i could start the Computer it worked with the 5.3.0-18-generic kernel.
These are the Kernels installed on my Computer:

ii linux-image-5.3.0-18-generic 5.3.0-18.19+1 amd64 Signed kernel image generic

ii linux-image-5.4.0-89-generic 5.4.0-89.100 amd64 Signed kernel image generic

ii linux-image-generic amd64 Generic Linux kernel image

I used ubuntu 19.04 for 2 years on this computer (HP dv 6, i7-2630qm 64bit) having no problems.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.36
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Mon Nov 8 20:20:32 2021
InstallationDate: Installed on 2021-11-07 (1 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
PackageArchitecture: all
 PATH=(custom, no user)
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: Upgraded to focal on 2021-11-07 (1 days ago)

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Andreas Bunzel (dreaz) said :
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Launchpad Janitor (janitor) said :

This question was expired because it remained in the 'Open' state without activity for the last 15 days.