[Bug 1882663] Autopkgtest regression report (grub2/2.04-1ubuntu26.3)

[Ubuntu SRU Bot]

All autopkgtests for the newly accepted grub2 (2.04-1ubuntu26.3) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

ubuntu-image/1.9+20.04ubuntu1 (arm64)
grubzfs-testsuite/0.4.10 (amd64)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/focal/update_excuses.html#grub2

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1882663

Title:
  Specify flavour ordering

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2 source package in Xenial:
  New
Status in grub2 source package in Bionic:
  New
Status in grub2 source package in Eoan:
  Won't Fix
Status in grub2 source package in Focal:
  Fix Committed
Status in grub2 source package in Groovy:
  Fix Released

Bug description:
  [Impact]
  We need to be able to override the preferred kernel flavour, examples being:

  - OEM metapackages need to set the kernel flavour to oem, and later to
  generic (e.g. when transitioning from 6.0-1000-oem to 6.0-1-generic)

  - FIPS kernels might cause a downgrade compared to an HWE kernel, but
  if you enable FIPS and reboot, you want to be booting a FIPS kernel

  [Regression potential]
  The change affects the ordering of kernels inside grub, hence a regression could be that we end up with the wrong order of kernels.

  [Test case]
  Install two flavours, add flavour name with lower version to /etc/default/grub.d/somefilename

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