Comment 10 for bug 1954680

Hi Harald, I'm sorry to read that you have problems with installing Ubuntu 20.04.
But let's be constructive please and let us know more details, so that we can look at solving the situation.

Which Ubuntu image did you used for the installation?
The very latest 20.04 ISO image is always available from here:
https://cdimage.ubuntu.com/releases/20.04/release/
(There are also ready to use Cloud images available).

Please notice that the way to install 20.04 differs from the previous Ubuntu releases,
see more details here: https://ubuntu.com/server/docs/installation

Where did you want to install: LPAR, z/VM or KVM?

Have you tried an interactive or non-interactive (autoinstall)?

And especially: Can you share the logs?
The interactive installer is a live installer, and even if you run into a problem, you can usually enter the installer shell (which give you access to a fully-fledged Ubuntu/Linux system).
Ideally share the entire /var/log/installer folder and (in case not empty) /var/crash.