I can confirm this issue impacts the current ISO for the 18.04.2 LTS release.
Impacted installation was on a Dell Inspiron 3668 with firmware version 1.3.4. Ubuntu LiveUSB has the above error and is unable to boot after a failed installation with the Secure Boot configuration checked in the installer. After disabling SupportAssist it shows the error in #51; Clonezilla booting into EFI doesn't enumerate as a boot option; I'm finding it difficult to get access to efibootmgr/efivars to fix this. I'll be trying system-rescue-cd next in my next attempt to make the proposed changes mentioned in #51. Any help or suggestions is much appreciated. Anyone happen to know a way of accessing efibootmgr/efivars from a legacy boot? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798171 Title: System fails to boot with \EFI\BOOT\mmx64.efi - Not Found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1798171/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs