VIrtualbox on Fedora 31: creating new machines fails

baggins · Post by **baggins** » 27. May 2020, 17:31

Hi,
I am running Virtualbox 6.1.8 on a Fedora 31 host.
I have a number of VM's running (several Linux and one Windows guest) and I wanted to upgrade a Fedora 31 VM to Fedora 32.
The upgrade process ran without problems but after a reboot I only got the grub screen followed by a black screen...
I then decided to create a new VM machine for Fedora 32. That machine booted the Live iso without a problem and I could install the OS to disk using Anaconda. Upon reboot however it was the same scenario: grub screen and then a blank screen.
I then tried to create a machine for Ubuntu but there I got stuck while booting the iso...
Strangely enough, while experimenting with display drivers, the Fedora 32 machine booted correctly at one point of time. Rebooting with the same display settings failed again...
All the existing machines run without problem.
Attached are the logs of the Fedora and Ubuntu fails.

Any ideas what may be going on?