[Bug 847475] Re: Installation's upgrade feature crashed

[Jean-Baptiste Lallement]

The root cause of the error is
Sep 11 20:11:55 ubuntu ubiquity: Traceback (most recent call last):
Sep 11 20:11:55 ubuntu ubiquity:   File "/usr/bin/apt-clone", line 113, in <module>
Sep 11 20:11:55 ubuntu ubiquity:     args.source, args.destination, args.new_distro_codename, protect_installed)
Sep 11 20:11:55 ubuntu ubiquity:   File "/usr/lib/python2.7/dist-packages/apt_clone.py", line 305, in restore_state
Sep 11 20:11:55 ubuntu ubiquity:     self._restore_package_selection(statefile, targetdir, protect_installed)
Sep 11 20:11:55 ubuntu ubiquity:   File "/usr/lib/python2.7/dist-packages/apt_clone.py", line 426, in _restore_package_selection
Sep 11 20:11:55 ubuntu ubiquity:     self._restore_package_selection_in_cache(statefile, cache, protect_installed)
Sep 11 20:11:55 ubuntu ubiquity:   File "/usr/lib/python2.7/dist-packages/apt_clone.py", line 406, in _restore_package_selection_in_cache
Sep 11 20:11:55 ubuntu ubiquity:     resolver.resolve()
Sep 11 20:11:55 ubuntu ubiquity: SystemError: E:Unable to correct problems, you have held broken packages.

Which is caused by
Sep 11 20:05:31 ubuntu ubiquity: WARNING:root:can't add at-spi (pkg at-spi not marked upgrade)
(bug 836798?)

This situation should handled more nicely than a python traceback


** Changed in: ubiquity (Ubuntu)
       Status: New => Triaged

** Summary changed:

- Installation's upgrade feature crashed
+ ubiquity crashes with File "/usr/lib/python2.7/dist-packages/apt_clone.py", line 406, in _restore_package_selection_in_cache when a package failed to upgrade

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https://bugs.launchpad.net/bugs/847475

Title:
  ubiquity crashes with File "/usr/lib/python2.7/dist-
  packages/apt_clone.py", line 406, in
  _restore_package_selection_in_cache when a package failed to upgrade

Status in “ubiquity” package in Ubuntu:
  Triaged

Bug description:
  I was trying to upgrade Ubuntu 11.04 to 11.10 using the new 'upgrade'
  feature and theinstaller crashed.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: ubiquity 2.7.28
  ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
  Uname: Linux 3.0.0-9-generic i686
  ApportVersion: 1.22.1-0ubuntu2
  Architecture: i386
  CasperVersion: 1.283
  Date: Sun Sep 11 20:12:28 2011
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta i386 (20110902)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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