[Bug 1827426] Update Released

[Steve Langasek]

The verification of the Stable Release Update for livecd-rootfs has
completed successfully and the package has now been 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/1827426

Title:
  ubuntu-cpc: parallel build targets produce different root FS output

Status in livecd-rootfs package in Ubuntu:
  New
Status in livecd-rootfs source package in Disco:
  Fix Released

Bug description:
  [Impact]

  The following targets have livecd.ubuntu-cpc.manifest (and
  livecd.ubuntu-cpc.ext4) which differ in some way from the 'all'
  target. They are all missing grub-efi and other modifications:

  root-dir
  squashfs
  tarball

  These targets do not depend on the 'disk-image' target. This means that
  the ext4 produced will lack the uefi modifications (and any from the
  disk-image target binary hooks).

  Since the ext4 file is common to all builds there is a chance that a
  parallel build from one of these targets could mistakenly be used.

  [Test Case]

  A build of each of the above mentioned image targets must produce a
  root filesystem that is the same as the 'disk-image' or 'all' target.

  [Regression Potential]

  None.  Image targets are not yet in use in production for the ubuntu-cpc project and the changes do not affect builds without specification of an
  image target.

  [Other Info]

  This is blocking backporting of image parallelization to the rest of our
  supported releases (and consumption of the feature overall) making it
  a high priority for us to see these in place.

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