Many many thanks Steve!
Bug Bios on my laptop is solved. \(^o^)/
For information: 1. download: http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/uefi/grub2-amd64/2.02~beta2-36ubuntu3.22/grubx64.efi.signed 2. change permission: sudo chmod 777 grubx64.efi.signed 3. copy: sudo cp grubx64.efi.signed /boot/efi/EFI/ubuntu/grubx64.efi 4. reboot
Many many thanks Steve!
Bug Bios on my laptop is solved. \(^o^)/
For information: archive. ubuntu. com/ubuntu/ dists/xenial- updates/ main/uefi/ grub2-amd64/ 2.02~beta2- 36ubuntu3. 22/grubx64. efi.signed EFI/ubuntu/ grubx64. efi
1. download: http://
2. change permission: sudo chmod 777 grubx64.efi.signed
3. copy: sudo cp grubx64.efi.signed /boot/efi/
4. reboot