[Bug 2048529] Re: Do we need to keep libvirt-bin forever?

[Christian Ehrhardt ]

On one hand I might slightly criticize that there are a bunch of [yN]
that the user needs to "yes" to get going at all.

And then there is the one about the removals in between.
Due to formerly having to "y" over the "[yN]" I instinctively kept going with "y" before.
But that isn't a bug, it is me not reading.


--

But on the other hand I'm still slightly wondering, why the package I
once explicitly installed now got into the "Remove (was auto installed)"
category.

And that is the bit that I'd ask to rethink if there is anything we'd need to fix (or not).
I'm also adapting the title and initial description to reflect that ...

** Summary changed:

- Do we need to keep libvirt-bin forever?
+ Is do-release-upgrade too aggressively removing transitionals?

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https://bugs.launchpad.net/bugs/2048529

Title:
  Is do-release-upgrade too aggressively removing transitionals?

Status in libvirt package in Ubuntu:
  Incomplete
Status in ubuntu-release-upgrader package in Ubuntu:
  Incomplete

Bug description:
  # History

  In debian/1.2.10-1 7ca6a8a libvirt-bin was changed to be a
  transitional.

  This will need to be retained until an LTS change happens so for Ubuntu this was kept and up until Xenial libvirt-bin was a package with content.
  Then it followed Debian

  Later in yakkety yak and later it got changed to be a transitional in 1.3.1-2
  Since we'd need to wait for an Ubuntu LTS 1.3.3-2ubuntu1 kept libvirt-bin (the transitional) around this stayed another while.

  Then post Bionic we dropped even that and libvirt-bin was no more (no
  package, no transitional, no nothing).

  # Problem

  This is kind of how transitions work, but now we've got a report that
  if people installed e.g. on Xenial and just `apt install libvirt-bin`
  to get virsh and other things back then. And upgrade through to e.g.
  focal or even later - they got the replacement packages like `libvirt-
  clients` removed (presumably as nothing depended on it anymore).

  TODO:

  This history is a bit convoluted as the timing was so different due to waiting until after LTSes.
  But we need to:
  1. Install xenial, install libvirt-bin, do-release-upgrade through to Jammy, check if libvirt-clients is still around or not.
  2. if not, then this is a bug and we need to find how to avoid.

  Potentially this is needed in all >Bionic and need to retain the
  libvirt-bin transitional forever? This feels so worng, with a deeper
  look I hope we can find what is actually going on and find a better
  solution.

  P.S. original reporter is Mmike on #ubuntu-server in IRC

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