[Bug 1377956] Re: modify semantics of bootme attribute to support delayed reboot

[Barry Warsaw]

** Also affects: ubuntu-system-image
   Importance: Undecided
       Status: New

** No longer affects: system-image (Ubuntu)

** Tags added: client

** Changed in: ubuntu-system-image
       Status: New => Triaged

** Changed in: ubuntu-system-image
    Milestone: None => 3.0

** Changed in: ubuntu-system-image
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1377956

Title:
  modify semantics of bootme attribute to support delayed reboot

Status in Ubuntu system image (server/client/updater):
  Triaged

Bug description:
  system-image currently supports a 'bootme' option that may be present
  in the JSON and instructs Touch to reboot _after it has finished
  downloading the current file_.

  However, Core has a slightly different requirement. It attempts to
  minimise reboots, but when certain packages (like the kernel) have
  been updated, a reboot will be required. Crucially though, this reboot
  should not occur until the the system image has been fully downloaded
  *and* fully unpacked.

  After a discussion with barry+mvo, we think the best approach is to
  modify the bootme flag to be able to specify a 'deferred' value
  meaning "reboot at end of download+unpack".

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