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I have a problem booting into Ubuntu 18.04. Before this I had Ubuntu 16.04, then I installed Ubuntu 18.04 and got this error.

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
System BootOrder not found. Initializing defaults.
Create boot entry "Boot0000" with label "ubuntu" for file "\EFI\ubuntu\shimx64"

Reset System

Then I tried to install Ubuntu 16.04 back and got the same error. After that I freed my disk (by setting all disk space to zero, formatting) and reinstalled Ubuntu, but I got the same error. Afterwards I installed Boot-Repair and reinstalled grub, but nothing changed. I have a Sony VAIO SVP112A1CV notebook. GPT was made by Rufus and tried it by running the dd command in Linux.

karel
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1 Answers1

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Did you try restarting the computer or removing the system battery, that is all i can think because i had a similar error with ubuntu 14.04 and i removed the system battery and restarted the computer and it booted

if that doesn't work try booting ubuntu on another pc or use a different hard disk (if it isn't then that might be the problem)