[Bug 1901906] Update Released

[Łukasz Zemczak]

The verification of the Stable Release Update for livecd-rootfs has
completed successfully and the package is now being released to
-updates.  Subsequently, the Ubuntu Stable Release Updates Team is being
unsubscribed and will not receive messages about this bug report.  In
the event that you encounter a regression using the package from
-updates please report a new bug using ubuntu-bug and tag the bug report
regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1901906

Title:
  amd64 images should have correct set of bootloaders installed

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Groovy:
  Fix Released
Status in livecd-rootfs source package in Hirsute:
  Fix Released

Bug description:
  [Impact]

   * amd64 images should have shim-signed & grub-pc installed as the
  bootloaders, with all other alternatives not installed; and not
  partially removed (rc state). This is the only way to ensure that
  secureboot/efi boot works correctly, but also for BIOS grub-pc to work
  correctly. This is how we install systems by default today.

  [Test Case]

   * Build images; check that shim-signed & grub-pc are installed and configured
   * Check that no other packages are autoremovable or partially removed (rc)

  [Regression Potential]

   * The above changes gurantee that upon upgrades / dist-upgrade the
  correct set of bootloaders are installed. There will be a change of
  debconf keys and bootloader packages that are installed on the system,
  when comparing with a previous image, which some automation may be
  sensitive to if they were trying to automatically correct bootloader
  setup before.

  [Other Info]
   
   * Uploaded into hirsute already.

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