[Bug 281232] Re: apt-get dist-upgrade shouldn't run when asked to upgrade between two releases

[Jean-Baptiste Lallement]

I'd like to reopen this issue. 16 years later, there are still plenty of
*informed* users who change their sources.list, run a dist-upgrade to
upgrade the release, and break their system. They then come to the
desktop team asking for help to rescue their broken system.

Even if we don't block them completely, apt should display a bit fat
warning informing the users that what they are going to do is definitely
not recommended, are they sure they want to proceed with the dist-
upgrade.

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https://bugs.launchpad.net/bugs/281232

Title:
  apt-get dist-upgrade shouldn't run when asked to upgrade between two
  releases

Status in apt package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: apt

  apt-get dist-upgrade is not a supported upgrade path for upgrading
  from one release to another (e.g. hardy to intrepid).  However, I see
  a lot of people who a) don't realise it's not a supported upgrade path
  (for various reasons) and b) don't even realise do-release-upgrade
  exists.

  I think it'd be really useful to alter apt to check to see whether the
  dist-upgrade it's being asked to do is across releases and refuse to
  run if it is (or at least require confirmation like removing essential
  packages does) and suggest the user use do-release-upgrade instead.

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