Hello!
I'll start with the most important thing.
Solution to the problem:
1. Boot through a live CD.
I am using the xubuntu-18.04.3-desktop-amd64.iso
2. Open the terminal.
sudo mount /dev/sda1 /mnt
sudo rm /mnt/EFI/ubuntu/grubx64.efi
sudo cp /cdrom/EFI/BOOT/grubx64
Hello!
No error.
On the OS xubuntu-18.04.3-desktop-amd64, I solved the problem.
After copying the old EFI to the outcrops of the GRUB, through a live disk.
In device /dev/sda1 EFI System
The operating system has worked as it should.
On the OS ubuntu-18.04.3-live-server-amd64, I have not tried it
Public bug reported:
Hello!
My environment:
Windows Server 2016 Standart
Hyper-V: Сontainer Gen 2: Security Check EFI - Off
Distribution OS: ubuntu-18.04.3-live-server-amd64.iso
Distribution OS: xubuntu-18.04.3-desktop-amd64.iso
My experiments have shown that these packages are the cause of the