[Bug 1043026] Re: Failed upgrade from Lucid to Precise

[Matthias Klose]

if the system is unbootable, this has nothing to do with python-
defaults.

** Package changed: python-defaults (Ubuntu) => ubuntu

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https://bugs.launchpad.net/bugs/1043026

Title:
  Failed upgrade from Lucid to Precise

Status in Ubuntu:
  New

Bug description:
  
  Attempting an upgrade from 10.04.4 LTS to 12.04 through the update manager results in a non-bootable system. The / partition is not found for some reason. Switching into the command line and performing an upgrade results in an error:

  $ apt-get -f upgrade

  E: Could not perform immediate configuration on 'python2.7-minimal'.
  Please see man 5 apt.conf under APT::Immediate-Configure for details.
  (2)

  Attempting to reinstall python2.7-minimal (and python-minimal) didn't
  work either:

  $ apt-get install -o APT::Immediate-Configure=false -f --reinstall
  python2.7-minimal

  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or
  specify a solution).

  Attempting a do-release upgrade completes with errors, although the
  system is now unbootable. I have attached the contents of /var/log
  /dist-upgrade.

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