With `set debug="chain,secureboot,dl"` added to the Grub menu entry, we get a flash of:
SecureBoot: 0 SetupMode: 0 linuxefi_secure_validate: 1 No shimlock protocol loader/efi/chainloader: Secure boot is not enabled Looks like Grub is insisting on Secure Boot, which we need to disable in order to boot Linux. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1839317 Title: Grub fails to chainload the Windows Boot Manager To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1839317/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
