Re: apt-get dist-upgrade -u on testing wants to uninstall 189 packages

[Neil Booth <neil@daikokuya.demon.co.uk>]

Anthony Towns wrote:-

> The problem here is some weird bug in apt's analysis of which packages are
> mor important: it's deciding to remove perl-5.005 and keep data-dumper,
> instead of the other way around, for some reason.
> 
> Easiest way to avoid this nastiness is to apt-get remove data-dumper
> first.

Is there an easy way here to see which package is at the root of the chain of
dependencies and causing problems?  I found it by trial-and-error, but it can
be terribly opaque.

Neil.