[Bug 986556] Re: Upgrade from Kubuntu 10.04 to 10.10 Fatal error

[Dave Lentz]

Maverick/10.10 has reached (end-of-life) EOL. It is recommended you
either upgrade to Kubuntu 11.04 or do a clean install of Kubuntu 12.04


Looking through the log, this is the only error I see:

Setting up rubygems1.8 (1.3.7-2) ...
update-alternatives: error: alternative gem can't be master: it is a slave of ruby
dpkg: error processing rubygems1.8 (--configure):
 subprocess installed post-installation script returned error exit status 2
dpkg: dependency problems prevent configuration of rubygems:
 rubygems depends on rubygems1.8 (= 1.3.7-2); however:
  Package rubygems1.8 is not configured yet.
dpkg: error processing rubygems (--configure):
 dependency problems - leaving unconfigured
...
Errors were encountered while processing:
 rubygems1.8
 rubygems

You should try purging the rubygems packages and reinstalling them

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https://bugs.launchpad.net/bugs/986556

Title:
  Upgrade from Kubuntu 10.04 to 10.10 Fatal error

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  I was upgrading Backtrack 5 Kubuntu 10.04 (retail) to the newer stable version 10.10 through the Update Manager , at the end, a fatal error came up on 99% of the "Installing the upgrades" step.
  Message was:

  COULD NOT INSTALL THE UPGRADES
  The upgrade has aborted. Your system could be in an unusable state. A recovery will run now (dpkg --configure -a). Please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bug report. E:Sub-process /usr/bin/dpkg returned an error code (1)

  Now I am filling the report.
  Hope da shit will still work... :/

  1)
  root at bt:~# lsb_release -rd
  Description:    Ubuntu 10.10
  Release:        10.10

  2)
  root at bt:~# apt-cache policy pkgname
  N: Unable to locate package pkgname

  3)
  I was expecting for the Upgrade to take place (10.04 > 10.10).

  4)
  The abortion of the upgrade message.
  Now I am going to press "close" button on the message and hopefully it will be able to repair itself.

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