[Bug 1575305] Re: Ubuntu system broken after upgrade from 15.10 to 16.04

[Baruch]

So, after some fiddling around I started from scratch: updated BIOS, removed all HDs and started with one HD that was used as a VM volume. 
Luckily the disk that originated as a VM did boot from metal into the once guest system an now a host Windows10. IMHO - A great KVM ability. 

Thanks to Steve and Tiago for your help! (and for a very interesting
insight into the way secure boot works).

I think the bug can be closed.

** Attachment removed: "fdisk_l"
   https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1575305/+attachment/4648358/+files/fdisk_l

** Attachment removed: "grep grub positive"
   https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1575305/+attachment/4648297/+files/alternatives.log

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https://bugs.launchpad.net/bugs/1575305

Title:
  Ubuntu system broken after upgrade from 15.10 to 16.04

Status in shim-signed package in Ubuntu:
  Incomplete

Bug description:
  After unfortunate click on upgrade to 16.04 my system is now almost
  useless (fortunately enough I can still work with a windows 10 VM.. )

  Seems like grub is failing to find efi folder so there is an avalanche
  of broken things - from shim to unity.

  I'll try to open from the broken system and add some more information.

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