[Bug 1508081] Re: Fails to receive OTA updates

[Barry Warsaw]

@victor-gonalez-0:  It's always going to be helpful to include -v when
running system-image-cli since that captures the log output to the
console.  From the method 2.jpg, you can see that UDM is not doing what
it's told to do.  IIRC, there's an open bug (I can't find it right now)
on this issue in UDM.

Sometimes what happens is that the paths system-image tells UDM to
download the files to don't exist after UDM has reported a successful
download.  That's the bug you see here.  I don't know why it happens.

One way around that is to cheat and bypass UDM.  Because of snappy, si
has an alternative built-in downloader based on pyCurl.  It doesn't know
how to do things like GSM but it often works when the UDM downloader
doesn't.  You can invoke it like so:

$ SYSTEMIMAGE_PYCURL=1 system-image-cli -v

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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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