[Bug 1508081] Re: Fails to receive OTA updates

[Matthew Paul Thomas]

Any system update that is not currently downloading, downloaded, or
failed should *already* be showing a “Download” button. That is true
whether it would download automatically next time you are on Wi-Fi or
not. <https://wiki.ubuntu.com/SoftwareUpdates#presenting-individual>
That button already exists in the code (plugins/system-
update/PageComponent.qml line 444). If it isn’t appearing when it
should, fix that bug, don’t add some extra “Download Now” button that
would end up comically duplicating the “Download” button when someone
accidentally fixes the bug later. (“Download” “Download Now” “Download
Right Now I Really Mean It”)

Meanwhile, the underlying problem here probably would be easier to debug
if the Updates screen itself reported download errors as designed, which
is bug 1215901 (content) and bug 1282499 (presentation).

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https://bugs.launchpad.net/bugs/1508081

Title:
  Fails to receive OTA updates

Status in Canonical System Image:
  In Progress
Status in Ubuntu system image:
  In Progress
Status in system-image package in Ubuntu:
  Confirmed
Status in ubuntu-download-manager package in Ubuntu:
  In Progress
Status in ubuntu-system-settings package in Ubuntu:
  In Progress

Bug description:
  Ubuntu Touch 15.04 (r23) [mako]

  Issue: Phone appears to fail to receive OTA updates. Previously, I jumped from (r15) to (r23) due to missing OTA updates. Currently, I see (r24) appears to be released on 2015 Oct 16.
  Expected behavior: System Settings > System > Updates (or System Settings > About this phone > Check for updates) reveals new image that I can release and download.
  Actual behavior: Checking for updates... > Software is up to date

  See the comment regarding similar issues for large app installs.
  It seems if anything interrupts the transfer or if the connection is somewhat slow the download performance degenerates then times out.

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