[Bug 1898543] Re: Mokmanager - failed to delete secure boot state

[Chris]

I ran into this issue after a BIOS Update and was able to resolve this
issue with the following steps:

- boot into BIOS
- set secure boot to setup mode
- boot into Ubuntu
- run 'mokutil --disable-validation'
- reboot to mokutil
- select 'change state' and 'disable secure boot'
- boot into Ubuntu
- run 'mokutil --enable-validation'
- reboot to mokutil
- select 'change state' and 'enable secure boot'
- boot into Ubuntu
- run 'mokutil --import /var/lib/shim-signed/mok/MOK.der' (it was already imported for my machine)
- boot into BIOS
- set secure boot to user mode
- boot into Ubuntu

now 'mokutil --sb-state' shows 'SecureBoot enabled'

Hope it helps someone

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https://bugs.launchpad.net/bugs/1898543

Title:
  Mokmanager - failed to delete secure boot state

Status in mokutil package in Ubuntu:
  Confirmed

Bug description:
  When i try to enable validation using sudo mokutil --enable-validation
  and then restart, inside mokmanager i select "Change secure boot
  state" -> "enable". Then i receive the bug "Failed to delete secure
  boot state".

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: mokutil 0.3.0+1538710437.fb6250f-1
  ProcVersionSignature: Ubuntu 5.4.0-48.52-lowlatency 5.4.60
  Uname: Linux 5.4.0-48-lowlatency x86_64
  ApportVersion: 2.20.11-0ubuntu27.8
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Oct  5 14:48:01 2020
  InstallationDate: Installed on 2020-02-08 (239 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  SourcePackage: mokutil
  UpgradeStatus: Upgraded to focal on 2020-04-20 (167 days ago)
  mtime.conffile..etc.apport.crashdb.conf: 2020-05-15T09:41:35.683742

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