Public bug reported: On a dual boot computer with Windows 10 Pro and Ubuntu 19.10, since a month, Grub was unable to boot Windows 10. Hitting the Windows entry line give me a 0.1s black screen and get me back to Grub Menu.
sudo update-grub give me : Sourcing file `/etc/default/grub' Sourcing file `/etc/default/grub.d/init-select.cfg' Generating grub configuration file ... Found linux image: /boot/vmlinuz-5.3.0-10-generic Found initrd image: /boot/initrd.img-5.3.0-10-generic Found Windows Boot Manager on /dev/sda1@/EFI/Microsoft/Boot/bootmgfw.efi Adding boot menu entry for EFI firmware configuration done ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: grub-efi-amd64 2.04-1ubuntu5 ProcVersionSignature: Ubuntu 5.3.0-10.11-generic 5.3.0-rc8 Uname: Linux 5.3.0-10-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Sep 25 08:01:05 2019 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash SourcePackage: grub2 UpgradeStatus: Upgraded to eoan on 2018-11-14 (314 days ago) ** Affects: grub2 (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug eoan ** Attachment added: "/boot/grub/grub.cfg" https://bugs.launchpad.net/bugs/1845289/+attachment/5291052/+files/grub.cfg -- 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