@Abheek Gogoi You think it is the solution ? )
Last time i tried install on my sdf disk in UEFI mode - at end grub failed to install on disk sda, why sda ? In BIOS mode installation was succesfull, but then nvdidia drivers bings black screen (https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-390/+bug/1752053) Next i try reinstall on same disk opensuse tumbleweed, and it installed ok in uefi mode. So installation procedure of 1804 somehow is wrong. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767703 Title: Calling 'apt-install grub-efi-amd64-signed' failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1767703/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs