@Carolin Wildt
The packages are still in the repositories, you can downgrade via apt-get
sudo apt-get install grub2-common=2.02~beta2-29ubuntu0.2 \ grub-common=2.02~beta2-29ubuntu0.2 grub-efi-amd64=2.02~beta2-29ubuntu0.2 \ grub-efi-amd64-bin=2.02~beta2-29ubuntu0.2
sudo apt-mark hold grub-common grub-efi-amd64-bin grub2-common grub-efi-amd64
The hold line will avoid future updates, so you will have to "unhold" the packages as soon as the bus is closed
@Carolin Wildt
The packages are still in the repositories, you can downgrade via apt-get
sudo apt-get install grub2-common= 2.02~beta2- 29ubuntu0. 2 \ common= 2.02~beta2- 29ubuntu0. 2 grub-efi- amd64=2. 02~beta2- 29ubuntu0. 2 \ efi-amd64- bin=2.02~ beta2-29ubuntu0 .2
grub-
grub-
sudo apt-mark hold grub-common grub-efi-amd64-bin grub2-common grub-efi-amd64
The hold line will avoid future updates, so you will have to "unhold" the packages as soon as the bus is closed