Rufus developer here. I am indeed seeing sporadic reports from users running into the bug above after they created installation media from the Ubuntu ISO (NB: For most UEFI bootable media generation, what Rufus does is simply copy the ISO content to a FAT32 file system on the USB), and the root of the appears to be be that, even if a Ubuntu GRUB installation does generate mmx64.efi on system install, there is no trace of any mmx64.efi anywhere in the ISO for the initial boot (even in /boot/grub/efi.img).
So I think you guys should make sure that you do include mmx64.efi in /efi/boot/ on the installation ISOs you generate. Also note that I am seeing similar reports from people who aren't using Rufus at all and are simply copying content to a FAT32 media they created themselves. -- 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
