[Bug 1250181] Re: Duplicate files in winning path should prevent updates

[Vincent Ladeuil]

I bricked my phone while trying to update it with system upgrade on the
phone (via the UI, not via 'adb shell system-image-cli -c trusty-
proposed -b 0 -v).

I was running image #15 at the time.

I failed to upgrade to image #20 (~260M wow) with an undecipherable
error message (mainly because the file name displayed was too long).

Since the progress bar behavior was a bit... surprising (went over 100,
~110, oops, let's get back to ~90) I tried again, same error.

After several attempts, trying to keep the phone from suspending and
watching the progress bar going backwards even before reaching > 100, I
resigned (I didn't have IRC access at that point to get some feedback).

Later in the day, image #17 was proposed. Huh ? Still missing IRC access
I thought some bug was detected server side and the images were re-
shuffled and happily tried that.

The download went well, I tapped the install & restart... rebooted to
the google logo and.... it's still there :-/

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https://bugs.launchpad.net/bugs/1250181

Title:
  Duplicate files in winning path should prevent updates

Status in Ubuntu Download Manager:
  Confirmed
Status in Ubuntu system image (server/client/updater):
  Fix Committed
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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