[Bug 1241660] Re: DistUpgradeFetcherCore error messages not displayed

[Launchpad Bug Tracker]

This bug was fixed in the package ubuntu-release-upgrader - 1:0.208

---------------
ubuntu-release-upgrader (1:0.208) trusty; urgency=low

  [ Brian Murray ]
  * Synchronize the list of metapackages used in the code.  LP: #1225016.
  * Properly display error messages encountered by DistUpgradeFetcherCore.
    (LP: #1241660)
  * DistUpgrade/DistUpgradeCache.py: Do not initialize the cache until we know
    it is unlocked.  (LP: #1214186)
 -- Brian Murray <brian at ubuntu.com>   Fri, 25 Oct 2013 09:17:56 -0700

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1241660

Title:
  DistUpgradeFetcherCore error messages not displayed

Status in “ubuntu-release-upgrader” package in Ubuntu:
  Fix Released

Bug description:
  Errors Bucket
  -------------
  https://errors.ubuntu.com/bucket/?id=/usr/bin/do-release-upgrade:AttributeError:/usr/bin/do-release-upgrade@152:run:error

  AMD64 upgrading from 13.04 to 13.10. In Terminal I type "update-manager -d", click on "Upgrade", authenticate my password, click on "Upgrade" again at the "Welcome to Ubuntu 13.10 'Saucy Salamander" window. A window pops up titled "Downloading Release Tool" and then disappears after file 2 message. Nothing happens.
  Here is the error message text that appears in the Terminal window:
  stephen at steve:~$ update-manager -d
  Checking for a new Ubuntu release
  authenticate 'saucy.tar.gz' against 'saucy.tar.gz.gpg'
  extracting 'saucy.tar.gz'
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py", line 305, in run
      raise ex
  OSError: Can not execute '/tmp/ubuntu-release-upgrader-1_qswl/saucy'

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/bin/do-release-upgrade", line 152, in <module>
      fetcher.run()
    File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py", line 310, in run
      _("This usually is caused by a system where /tmp "
    File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py", line 50, in error
      return error(self.window_main.window_main, summary, message)
  AttributeError: 'NoneType' object has no attribute 'window_main'

  Here is the version of update-manager:
  update-manager:
    Installed: 1:0.186.2
    Candidate: 1:0.186.2
    Version table:
   *** 1:0.186.2 0
          500 http://us.archive.ubuntu.com/ubuntu/ raring-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:0.186 0
          500 http://us.archive.ubuntu.com/ubuntu/ raring/main amd64 Packages

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