[Bug 1925010] Re: shim-signed 15.4 does not boot on EFI 1.10 systems

[Richard J Uschold]

This bug seems quite similar to the one I reported:
Ubuntu 20.04 LTS Fails to boot on Lenovo Flex 3-1480 laptop: Bug #1925710

As my bug explains, my 2015 Flex 3-1480 has a similar boot issue
problem, though my 2019 Acer E15 Aspire E5-576 boots just fine.

Anyone think these are the same bug?

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Title:
  shim-signed 15.4 does not boot on EFI 1.10 systems

Status in shim package in Ubuntu:
  Confirmed
Status in shim-signed package in Ubuntu:
  Confirmed
Status in shim source package in Hirsute:
  In Progress
Status in shim-signed source package in Hirsute:
  In Progress

Bug description:
  The latest update on Hirsute made the MacBook Air from 2012
  unbootable.

  It could be recovered by booting a 20.04 live CD, downloading 20.04's
  shim package and overwriting the files in EFI/ubuntu and EFI/BOOT with
  the files shipped in the shim package.

  Machines Affected (not comprehensive):
  MacBookPro8,2
  MacBookAir5,2

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