[Aptitude-devel] Bug#722211: Bug#722211: please make aptitude more clever on resolving dependency problems

[Axel Beckert]

Control: tag -1 + confirmed

Hi Harald,

Harald Dunkel wrote:
> Its hard to reproduce, but when aptitude asks me to resolve
> package conflits it presends an endless flow of complex
> package sets to keep and downgrade and to remove, instead
> of keeping a single package that can still be found in
> testing.

Indeed. Aptitude currently seems to prefer removals and downgrades
over keeps.

You can changed that yourself either with resolver hints (see
http://aptitude.alioth.debian.org/doc/en/ch02s03s05.html) or resolver
costs (see http://aptitude.alioth.debian.org/doc/en/ch02s03s04.html).

> It would be very nice if this could be improved, e.g. by
> some algorithm looking for the least painful change and
> presenting it first.

That'd be nice when running unstable, yes.

Not sure though if it's the best solution during dist-upgrades from
oldstable to stable.

		Regards, Axel
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