@Chris Wilson: Thanks for your hints. It was possible for me to enter GRUB edit but I think it did'nt took my changes. Anyway, if I boot my system with version -20, (latest Update was -22), I can operate it (there are some other error messages during boot - but finally it works).
I hope that there will be a update that fixes the problem in the future.?
@Chris Wilson: Thanks for your hints. It was possible for me to enter GRUB edit but I think it did'nt took my changes. Anyway, if I boot my system with version -20, (latest Update was -22), I can operate it (there are some other error messages during boot - but finally it works).
I hope that there will be a update that fixes the problem in the future.?