[Merge] lp:~ubuntu-managed-branches/ubuntu-system-image/251-0u1 into lp:~ubuntu-managed-branches/ubuntu-system-image/system-image

[Barry Warsaw]

Barry Warsaw has proposed merging lp:~ubuntu-managed-branches/ubuntu-system-image/251-0u1 into lp:~ubuntu-managed-branches/ubuntu-system-image/system-image.

Commit message:
LP: #1383539 - fixes to phased updates for rtm.

Requested reviews:
  Ubuntu CI managed package branches (ubuntu-managed-branches)
Related bugs:
  Bug #1383539 in Ubuntu system image: "phased update support does not give idempotent answer for each (machine,update)"
  https://bugs.launchpad.net/ubuntu-system-image/+bug/1383539

For more details, see:
https://code.launchpad.net/~ubuntu-managed-branches/ubuntu-system-image/251-0u1/+merge/240034

system-image (2.5.1-0ubuntu1) UNRELEASED; urgency=medium

  * New upstream release.
    - LP: #1383539 - Make phased upgrade percentage calculation idempotent
      for each tuple of (channel, target-build-number, machine-id).  Also,
      modify the candidate upgrade path selection process such that if the
      lowest scored candidate path has a phased percentage greater than the
      device's percentage, the candidate will be ignored, and the next
      lowest scored candidate will be checked until either a winner is found
      or no candidates are left, in which case the device is deemed to be
      up-to-date.
    - system-image-cli options -p/--percentage were added to allow command
      line override of the device's phased percentage.
    - system-image-cli --dry-run now also displays the phase percentage of the
      winning candidate upgrade path.

 -- Barry Warsaw <barry at ubuntu.com>  Wed, 29 Oct 2014 14:31:18 -0400

-- 
https://code.launchpad.net/~ubuntu-managed-branches/ubuntu-system-image/251-0u1/+merge/240034
Your team Ubuntu CI managed package branches is requested to review the proposed merge of lp:~ubuntu-managed-branches/ubuntu-system-image/251-0u1 into lp:~ubuntu-managed-branches/ubuntu-system-image/system-image.
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