Ubuntu
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  1. Bug #1242271
  2. Comment #5

Comment 5 for bug 1242271

Revision history for this message
Steve Langasek (vorlon) wrote :

You are not booted under UEFI, you are booted in BIOS compatibility mode. There is no way you could get this error message if you were using the grub-efi-amd64 package, so you must be using the grub-pc package.

Considering that booting under UEFI requires repartitioning to create a special boot partition, you probably have to reinstall to get UEFI boot enabled.