[Bug 1799319] Re: Upgrade to 18.10 fails: Please install all available updates

[Guy Rouillier]

Brian, thanks for the responses.  Please see my last action:

root at ubuntu64:~# apt-get purge lldb

This allowed do-release-upgrade to finally proceed. gnome-shell and
gnome-shell-common were wild gooses.  The key ingredient seems to be
this:

root at ubuntu64:~# apt-get upgrade
The following packages have been kept back:
  lldb

Once I purged lldb, the release upgrade was clear to go.  So, the hiccup
seems to be held-back packages.  I don't know enough about the inner
workings of the upgrade process to understand how held-back packages
figure into it.

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https://bugs.launchpad.net/bugs/1799319

Title:
  Upgrade to 18.10 fails: Please install all available updates

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  I just tried to upgrade an x64 VM from 18.04 Mate to 18.10, and it
  failed. Using the Software Updater from the menu, it tells me

  "The software on this computer is up to date. However, Ubuntu 18.10 is
  now available (you have 18.04)."

  When I click the Upgrade... button, the dialog disappears and nothing
  happens.

  If I run do-release-upgrade from a terminal, it tells me

  "root at ubuntu64:~# do-release-upgrade
  Checking for a new Ubuntu release
  Please install all available updates for your release before upgrading."

  I have dual boot on this computer, and also have Ubuntu Mate 18.04
  running as a bootable OS. I just tried to upgrade that installation,
  and it fails in exactly the same way. I only recently installed that
  instance, so it's a very simple installation at this point (unlike the
  VM which I've used for several years and installed numerous packages,
  including PPA.) So there appears to be a general problem in this
  upgrade path.

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