[Bug 1990326] Re: ubuntu server 20.04.5 cannot be installed after enable secure boot

[Steve Langasek]

This is an unfortunate bug caused by the fact that our point release
process does not account for the need to update the debian-installer
source package to get updated boot assets for the images, and as a
result the 20.04.5 point release images despite being built in August
2022 were built with an older shim version from February 2021 that we
knew was going to be revoked.

Discussions are in progress for a .6 point release to correct this
error.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/1990326

Title:
  ubuntu server 20.04.5 cannot be installed after enable secure boot

Status in debian-installer package in Ubuntu:
  Invalid
Status in shim package in Ubuntu:
  Invalid
Status in debian-installer source package in Focal:
  New
Status in shim source package in Focal:
  New

Bug description:
  Reproduce steps
  1. Enable secure boot in the UEFI.
  2. Fresh install ubuntu server 20.04.5 lts and latest daily build, but it fail with "An unauthorized EFI image is detected, please enroll this EFI image or disable secure boot ...."

  Others:
  1. Both ubuntu server 18.04.6 and 22.04 can be normal installed.

  It seem the key of 20.04.x has been added into the latest UEFI
  Revocation List File(Release Date: August 12,
  2022.https://uefi.org/revocationlistfile/archive).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1990326/+subscriptions