[Bug 1272664] Re: Installing UEFI boot entry on Hyper-V gen 2 corrupts VM configuration, making the VM unuseable

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** Changed in: efibootmgr (Debian)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1272664

Title:
  Installing UEFI boot entry on Hyper-V gen 2 corrupts VM configuration,
  making the VM unuseable

Status in “efibootmgr” package in Ubuntu:
  Fix Released
Status in “efibootmgr” package in Debian:
  Fix Released

Bug description:
  Installing Ubuntu on a generation 2 Hyper-V VM corrupts the
  configuration of said VM, so the VM cannot be loaded by the VM manager
  any more and the VMs settings are no longer accessable.

  I narrowed the cause of the bug down to the creation of the boot
  loader entry in the VMs UEFI.

  Steps to repoduce:
  * Create a new generation 2 VM in Hyper-V
  * Use a Alpha 2 (or newer) image of 14.04 to install (X-)Ubuntu (Kernel 3.13 or newer is required for the generation 2)
  * After the successful installation try to access the VMs settings menu -> No longer accessaible, Hyper-V returns an error
  * Check the Hyper-V Manager -> The corrupted VM is no longer in the list of VMs.

  Additional it can be confirmed afterwards by doing:
  * Create a new generation 2 VM using the same virtual hard drive file (*.vhdx) used before.
  * Boot into the live session.
  * Create the UEFI boot entry again
  -> VM is again corrupted and shows the same symptoms as above.

  This bug breaks Ubuntu on Hyper-V generation 2. That is a serious
  issue, as the generation 2 offers a lot of improvements over the
  generation 1.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: grub-efi-amd64-signed 1.27+2.00-22
  ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
  Uname: Linux 3.13.0-5-generic x86_64
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  CasperVersion: 1.336ubuntu1
  Date: Sat Jan 25 12:25:12 2014
  LiveMediaBuild: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140121.1)
  ProcEnviron:
   LANGUAGE=en_US
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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