Bug#844300: nvidia-driver-libs:amd64: upgrade failure due to dependency issue

[Luca Boccassi]

On Mon, 2016-11-14 at 14:40 +0100, Vincent Lefevre wrote:
> On 2016-11-14 12:09:50 +0000, Luca Boccassi wrote:
> > The same versions are available in the i386 and amd64 archives. Are you
> > sure your local apt sources are all up to date?
> 
> I could install the i386 versions later. But an upgrade should not
> fail even when the apt sources are not up to date: that's the goal
> of Depends and Breaks to make sure that the package system remains
> in a consistent state.

If the i386 libraries are installed, then they must be upgraded at the
same time. You cannot install them later. The dependencies are there to
ensure this happens.

This looks like a bug in aptitude, which shouldn't have let the upgrade
happen if it couldn't satisfy all dependencies. Given the i386 top-level
dependencies, the nvidia-driver-libs-i386 metapapkg, is only a recommend
of nvidia-driver-libs, I'd guess aptitude failed to parse it.

Kind regards,
Luca Boccassi
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