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

[Seth Arnold]

Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a "regular" (non-security) bug.  I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privilege boundaries nor directly cause loss of data/privacy.
Please feel free to report any other bugs you may find.

** Information type changed from Private Security to Public

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

Status in shim package in Ubuntu:
  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).

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