[Bug 1701698] Update Released

[Brian Murray]

The verification of the Stable Release Update for skiboot 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/1701698

Title:
  update skiboot to 5.4.3 in xenial

Status in The Ubuntu-power-systems project:
  Fix Released
Status in skiboot package in Ubuntu:
  Fix Released
Status in skiboot source package in Xenial:
  Fix Released

Bug description:
  [Impact]

  skiboot is a hardware enablement component used by certain POWER systems and should be kept up-to-date on LTS releases. The new upstream version of skiboot is required for xenial to support the new POWER9 systems.
  The new upstream version update was requested by upstream and includes only hardware enablement changes and bugfixes, making it an ideal case for a new microrelease backport.

  [Test Case]

  On a supported system, upgrade opal-prd and opal-utils. Reboot and
  verify that system works as expected. Verify that the opal-prd service
  is running with `systemctl status opal-prd`, make sure there are no
  worrying error messages in the logs.

  [Regression Potential]

  Any new upstream release can introduce potential regressions. The opal-prd service is used for diagnostics and runtime maintenance of POWER systems, meaning a critical regression can cause the system being unusable.
  The requested release is in zesty since the end of May 2017 and no critical issues have been reported so far. Also, seeing that the package is still in universe and only targets specific ppc64el hardware, in the case of a regression the number of affected users should be relatively low.

  [Original Description]

  Dear Canonical,

  Current skiboot version on Xenial is not enough to full support POWER9
  machines, and the backport is not trivial, since it involves a lot of
  commit,

  We would like to migrate skiboot version 5.4.3, from Zesty into
  xenial-updates, if possible.

  Thank you,

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