[Bug 1997795] Update Released

[Brian Murray]

The verification of the Stable Release Update for grub2 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/1997795

Title:
  grub-multi-install offers wrong devices as ESP

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2 source package in Focal:
  Fix Committed
Status in grub2 source package in Jammy:
  Fix Released
Status in grub2 source package in Kinetic:
  Fix Released

Bug description:
  [Impact]
  grub-multi-install offers the wrong device as ESP if a previous partition was recognized, because it does not correctly reset state between loop iterations, causing people to be offered e.g. the entire disk device as an ESP, and then install to obviously fail.

  [Test plan]
  Launch a lxd VM, run
   dpkg-reconfigure shim-signed

  check that only the ESP appears.

  Before the update, /dev/sda itself would appear as well.

  [Where problems could occur]
  Most importantly, some firmware are less restrictive about ESPs than grub-multi-install is, and if we previously accidentally "recognized" the partition as an ESP and now no longer do, grub does not get updated.

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