[Bug 1821630] Re: After enabling Secure Boot - unable to boot Ubuntu

[BoQsc]

I restarted the laptop, enabled Secure Boot option in the UEFI.

The same error popped out and was unable to boot into Ubuntu until I
disable Secure Boot:

"Boot failure : a proper digital signature was not found.
One of the files on the selected boot device was rejected by the Secure Boot feature."

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https://bugs.launchpad.net/bugs/1821630

Title:
  After enabling Secure Boot - unable to boot Ubuntu

Status in shim package in Ubuntu:
  Incomplete

Bug description:
  The section in the documentation of Ubuntu wrote, that if I have
  problems while booting with secure boot enabled, I should file a bug
  report: https://help.ubuntu.com/community/UEFI#SecureBoot

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: shim (not installed)
  ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
  Uname: Linux 5.0.0-8-generic x86_64
  ApportVersion: 2.20.10-0ubuntu23
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Mar 25 21:11:17 2019
  InstallationDate: Installed on 2018-10-26 (150 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.3)
  SourcePackage: shim
  UpgradeStatus: No upgrade log present (probably fresh install)

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