[Bug 1915536] Re: one grub

[Dimitri John Ledkov]

** Merge proposal unlinked:
   https://code.launchpad.net/~xnox/grub/+git/grub/+merge/398407

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https://bugs.launchpad.net/bugs/1915536

Title:
  one grub

Status in grub2 package in Ubuntu:
  Fix Committed
Status in grub2-signed package in Ubuntu:
  Fix Committed
Status in grub2 source package in Xenial:
  Fix Committed
Status in grub2-signed source package in Xenial:
  Fix Committed
Status in grub2 source package in Bionic:
  Fix Committed
Status in grub2-signed source package in Bionic:
  Fix Committed
Status in grub2 source package in Focal:
  Fix Committed
Status in grub2-signed source package in Focal:
  Fix Committed
Status in grub2 source package in Groovy:
  Fix Committed
Status in grub2-signed source package in Groovy:
  Fix Committed
Status in grub2 source package in Hirsute:
  Fix Committed
Status in grub2-signed source package in Hirsute:
  Fix Committed

Bug description:
  [Impact]

  The proposal is to split src:grub2 into two source packages.

  src:grub2 will continue to build most things, apart from bin|dbg
  |signing-tempate binary packages for platforms that get signed.

  src:grub2-unsigned source package is source-full copy of src:grub2
  that only builds bin|dbg|signing-tempate binary packages for platforms
  that get signed and submits monolithic binaries for signing.

  src:grub2-signed is built as before, but its maintainer scripts should
  be compatible across grub2-common from precise and up.

  Stable series will receive grub2 update that drops building bin|dbg
  |signing-template.

  Stable series will receive binary-copy of grub2-unsigned &
  grub2-signed, thus on signed platforms EFI apps and modules will be
  the same across all series.

  [Caveats]

  * In devel series, always upload grub2 with matching
  src:grub2-unsigned and src:grub2-signed. The unsigned package can be
  build with ./debian/rules generate-grub2-unsigned command from
  src:grub2.

  * In stable series, only upload src:grub2 when fixes needed in update-
  grub / grub.cfg / grub-install / etc, but not in the efi modules &
  apps.

  * As needed, binary copy grub2-unsigned & grub2-signed from later
  series to stable series.

  [Test Case]

   * Upgrade to new packages

   * Observe that system boots, one can use grub-mkimage / grub-mkrescue
  without issues.

  [Where problems could occur]

   * There might be regression on the EFI platforms with grub 2.04 that
  have not so far been caught on Focal / Groovy / Hirsute.

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