[Bug 1250181] Re: download update from 16 to 20 failed on mako

[Manuel de la Peña]

I have proposed a branch in u-d-m that stops it from allowing two local
files to be the same. It will not fix the issue perse because the
upgrade won't be possible but we will know the exact reason.

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Title:
  download update from 16 to 20 failed on mako

Status in Ubuntu Download Manager:
  Confirmed
Status in Ubuntu system image (server/client/updater):
  Confirmed
Status in “system-image” package in Ubuntu:
  Confirmed

Bug description:
  Trying to OTA update from 16 to 20 on mako. See screenshot.

  root at ubuntu-phablet:/var/log/system-image# system-image-cli -i
  current build number: 16
  device name: mako
  channel: trusty-proposed
  last update: 2013-11-09 13:52:54
  version version: 16
  version ubuntu: 20131109
  version device: 20131109

  From /var/log/system-image/client.log

  [systemimage] Nov 11 18:24:00 2013 (8816) Running group download reactor
  [systemimage] Nov 11 18:25:20 2013 (8816) Group download reactor done
  [systemimage] Nov 11 18:25:23 2013 (8816) uncaught exception in state machine
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/systemimage/state.py", line 138, in run_until
      step()
    File "/usr/lib/python3/dist-packages/systemimage/state.py", line 453, in _download_files
      raise SignatureError(dst)
  systemimage.gpg.SignatureError: /android/cache/recovery/device-bc45abbc8b271608f690cc12f7e3dd6e3b6527fdd818a22ea1d2d204350dc56e.delta-device-f67595b49ad4c8233c0ad4645695dd2154242dc3e29b4a60a3afc39058b126a6.tar.xz

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