[Bug 2076928] Re: [SRU] Rebuild cd-boot-images-{amd64, arm64} against new shim and grub

[Mate Kukri]

*** This bug is a duplicate of bug 2076929 ***
    https://bugs.launchpad.net/bugs/2076929

** This bug has been marked a duplicate of bug 2076929
   [SRU] Rebuild cd-boot-images-{amd64,arm64} against new shim

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https://bugs.launchpad.net/bugs/2076928

Title:
  [SRU] Rebuild cd-boot-images-{amd64,arm64} against new shim and grub

Status in cd-boot-images-amd64 package in Ubuntu:
  New

Bug description:
  [ Impact ]

   * Microsoft is rolling out SBAT revocations via Windows update such that
     single-boot machines with Windows won't be able to boot shim executables
     with SBAT level less than shim,4.

   * For the 22.04.5 media we would like to include the 15.8 shim so that
     it is bootable on such machines.

  [ Test Plan ]

   * Ensure that the resulting cd-boot images contain our 15.8-0ubuntu1 MS UEFI
     CA signed shim executable.

  [ Where problems could occur ]

   * Impact is limited to media built using the new cd-boot images which will go
     through the usual rigorous QA process.

   * The shim and grub that will be used as part of this process will be in the Jammy
     archive before being part of media.

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