Bug#855415: installation-reports: Debian-Testing fails to reboot after installation.
> You need to log in (as explained above), enable non-free packages (see
> https://wiki.debian.org/SourcesList), and install the firmware-amd-
> graphics package. Then you should probably reboot.
This worked! :) Now, I only keep getting the kvm: disabled by bios
messages but after 5 sec the login-screen appears.
Thanks a lot!
P.S.: Why is the firmware-amd-graphics package neccessary? Debian 8.5
stable worked without this non-free firmware.