For anyone trying to reproduce: VirtualBox with EFI enabled with Win 10 Pro x86_64 installed first and Ubuntu 19.10 installed after Windows to the latest additional partition of /dev/sda. On fresh install with all updates:
1. Make sure you can boot both Windows and Ubuntu 2. Purge all shim* and grub* packages 3. sudo apt autoremove --purge 4. sudo rm -rf /boot/efi/EFI/ubuntu /boot/efi/EFI/grub /boot/grub 5. sudo apt install grub-efi-amd64-bin 6. sudo grub-install /dev/sda 7. sudo update-grub 8. Try to boot windows. Grub should blink and return you back to the menu. You should have only the following packages installed: * grub-efi-amd64-bin * grub-efi-amd64 * grub-common * grub2-common There should be no shim packages. Then try: sudo add-apt-repository ppa:xeron-oskom/grub2 sudo apt update sudo apt dist-upgrade sudo grub-install /dev/sda sudo update-grub You should be able to boot Windows again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845289 Title: Grub EFI amd64 no longer start EFI/Microsoft/Boot/bootmgfw.efi To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1845289/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
