Interrupted release upgrade, how to sort out left-over old packages?

[Chris Green]

On Wed, May 18, 2016 at 02:52:41PM +0200, Nils Kassube wrote:
> Chris Green wrote:
> > I think I know now the cause of my 'left-over' PHP5 packages in a
> > 16.04 installation.  (See previous thread)
> > 
> > The system in question got interrupted (the cat walked across the
> > keyboard!) while doing a do-release-upgrade.  I restarted it and after
> > a couple of 'apt-get update' and an 'apt-get dist-upgrade' it seemed
> > to have sorted itself out and have 16.04 properly installed.
> > 
> > However, obviously not all the packages that should have been upgraded
> > were upgraded, hence my left-over PHP5 packages.
> > 
> > I've sorted out the PHP5 ones now but I suspect there may be other
> > left-over packages from 15.10 that haven't been updated.  Is there any
> > way I can check and update them?
> 
> I don't know a cli way, only with synaptic: at the left side at the 
> bottom select the section "Origin". Then look at the left top for the 
> source "Local". There you find the packages which are not in any of your 
> repositories.
> 
Synaptic is my preferred GUI.

However on mine when I select Origin there are several Local sources,
in particular Local/main (gb.archive.ubuntu.com) seems to have most of
my installation in it.  In fact I can't make much sense of that column
when 'Origin' is selected.

-- 
Chris Green