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

[Launchpad Bug Tracker]

This bug was fixed in the package shim-signed - 1.47

---------------
shim-signed (1.47) impish; urgency=medium

  [ Balint Reczey ]
  * Fix boot on EFI 1.10 machines, for example on some MacBooks (LP: #1925010)

  [ Dimitri John Ledkov ]
  * Fix kernel warning when allocating MOK table (LP: #1925139)
  * Fix booting with shim SBState disabled (LP: #1925140)
  * Use -Zxz compression, for compatibility with dpkg in older releases.
    LP: #1925673

shim-signed (1.46) hirsute; urgency=medium

  * New upstream release 15.4 LP: #1921134
  * Ship fb & mm from shim-signed package.
  * Remove shim-canonical-unsigned dependency, now provided by shim
    itself.
  * Generalize attaching externally supplied signatures, to aid building
    with embargoed or MS external signatures.

 -- Dimitri John Ledkov <xnox at ubuntu.com>  Fri, 30 Apr 2021 10:46:25
+0100

** Changed in: shim-signed (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1925010

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

Status in shim package in Ubuntu:
  Fix Released
Status in shim-signed package in Ubuntu:
  Fix Released
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

  [Test case]
  For a system that has applied the workaround from https://bugs.launchpad.net/ubuntu/+source/shim/+bug/1925010/comments/14 and is bootable:

  - install shim-signed from hirsute-proposed
  - reboot
  - verify that the system now boots without workaround

  This test case applies only to hirsute.  For all other series, there
  has been no regression, and because this is the same binary across all
  series, no other SRU testing is required.

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