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

[Kasper Petersen]

I appear to have the same issue as described by comment #24/#25.

The installer didn't crash on me though. I also typed in a password and
continued, but it didn't crash on me. I aborted the installation when
picking where to install to due to needing to change settings in my BIOS
for Ubuntu to be able to detect my HDD.

Currently I'm unable to even boot the bootable Ubuntu USB I made without
this happening. I can boot the USB if I disable EFI entirely and boot
using legacy. I still have Windows installed on it and this boots
normally.

I would really appreciate help resolving this asap.

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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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