[Bug 1798171] Re: System fails to boot with \EFI\BOOT\mmx64.efi - Not Found

[Tuomas Jaakola]

I was about to install Ubuntu 18.10 into laptop (MSI GT62VR 7RE
Dominator Pro) using USB installation media. It was able to boot up and
start installation until the installation halted with a black screen.
After I rebooted I got the same error about missing mmx64.efi.

Windows 10 boots up fine without Ubuntu installation USB stick, but when
I try to boot up using the stick, it fails every time giving me the same
error. So I can't even start installation or use a command line from USB
stick anymore. In /EFI/BOOT/ there are only BOOTx64.EFI and grubx64.efi
files, mmx64.efi file is missing there (should it be there?).

The installation USB stick is created in another machine, using Startup
Disk Creator from Ubuntu 18.04.

Thank you for fixing grub2! How can I use patched grub2 and create a new
Ubuntu installation USB stick which would work? Or what should I do?

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https://bugs.launchpad.net/bugs/1798171

Title:
  System fails to boot with \EFI\BOOT\mmx64.efi - Not Found

Status in grub2 package in Ubuntu:
  Fix Released

Bug description:
  System: Dell Inspiron 11 3137 - BIOS A05 Phoenix SecureCore Technology

  Cosmic desktop installation on UEFI system with secure boot enabled,
  third party drivers checked, installation on entire disk.

  On boot the system fails with:

  Failed to open \EFI\BOOT\mmx64.efi - Not Found
  Failed to load image \EFI\BOOT\mmx64.efi - Not Found
  Failed to start MokManager: Not Found
  Something has gone seriously wrong: import_mok_state() failed
  : Not Found

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
  Uname: Linux 4.18.0-8-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: amd64
  Date: Tue Oct 16 19:26:56 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper --
  InstallationDate: Installed on 2013-09-03 (1868 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902)
  ProcEnviron:
   LANG=C.UTF-8
   TERM=xterm-256color
   SHELL=/bin/bash
   PATH=(custom, no user)
  SourcePackage: ubiquity
  UpgradeStatus: Upgraded to cosmic on 2018-01-26 (263 days ago)

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