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The PC is Acer with Windows 10. Bought last year and reinstalled with Ubuntu 16. I tried Ubuntu 17 after it came out. Everything was fine until I accidently used some upgrade from Software Center. Now everytime I hit the power button, it flashes:

System BootOrder not found. Initializing defaults. 
Creating boot entry 'Boot0038' with label 'ubuntu' for file 
'\EFI\ubuntu\shimx64.efi'. 

Reset system

And it immediately powers off itself and restarts to repeat the failure. I can only boot from a bootable USB-stick in legacy boot mode.

I know I shouldn't use the upgrade so carelessly but can someone help me out.

galoget
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1 Answers1

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Sounds like the EFI section of partition table has lost its' boot list. Only way I know to add them is by reinstalling the whole system. Making sure Ubuntu sees your EFI boot partition. Been there, done that here too. If you can boot into windows via the cd, there are options to rebuild the MBR (mast boot record). it will put back the windows boot settings. There are cd / ISO of parition recovery systems online. I know one had a feature to "find" bootable paritions on your system. SystemRecovery CD or something like that.

Zanthux
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