[Bug 944452] Re: Essential packages will be removed "lzma (due to dpkg)" when doing dist-upgrade

[Michael Vogt]

If its apt-get you should probably install a new apt from precise first
as there are more changes that may not make the upgrade work very well
without a new apt.

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https://bugs.launchpad.net/bugs/944452

Title:
  Essential packages will be removed "lzma (due to dpkg)" when doing
  dist-upgrade

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

Bug description:
  When doing dist-upgrade from (fully patched) 10.04 LTS x64 "Lucid" to
  12.04 LTS x64 "Precise" (beta1) you are warned;

  WARNING: The following essential packages will be removed
  This should NOT be done unless you know exactly what you are doing!
    lzma (due to dpkg)

  
  I should note that the actual steps I followed from 10.04 were;

  source set to "lucid"
  upgrade
  dist-upgrade
  change sources to "precise"
  upgrade
  dist-upgrade

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