[Bug 1645075] Re: UEFI + Secureboot + guided full disk encryption -> new system fail to boot after install.

[Scott]

I have a similar issue when I upgraded to Ubuntu 19.10. I was thinking it was a Grub2 issue.
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851031

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https://bugs.launchpad.net/bugs/1645075

Title:
  UEFI + Secureboot + guided full disk encryption -> new system fail to
  boot after install.

Status in debian-installer package in Ubuntu:
  New
Status in grub2-signed package in Ubuntu:
  New

Bug description:
  Fresh install on a physical system.
  UEFI (in non legacy mode)
  Secureboot ON
  NetInstall via PXE

  Select 'guided partitioning - LVM+encryption' as disk formatting
  stage.

  Installation goes fine (except for the know problem with
  GRUB_ENABLE_CRYPTODISK in /etc/default/grub)

  Rebooting into the newly installed system, it immediately drop to a GRUB prompt.
  Upon investigation, it looks like crypto GRUB modules are not present, preventing GRUB to access the main disk and boot the system.

  Install without encryption works fine.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: debian-installer (not installed)
  ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0
  Uname: Linux 4.8.0-26-generic x86_64
  ApportVersion: 2.20.3-0ubuntu8
  Architecture: amd64
  Date: Sun Nov 27 05:58:20 2016
  EcryptfsInUse: Yes
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  MemoryUsage:
   total        used        free      shared  buff/cache   available
   Mem:       16291844      197412    15683596        9636      410836    15807000
   Swap:      16629244           0    16629244
  ProcEnviron:
   LANG=en_IE.UTF-8
   TERM=linux
   LANGUAGE=en_IE:en
   PATH=(custom, no user)
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-26-generic.efi.signed root=/dev/mapper/hostname--vg-root ro splash quiet vt.handoff=7
  SourcePackage: debian-installer
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/18/2016
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.70
  dmi.board.name: N3700-ITX
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.70:bd04/18/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnN3700-ITX:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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