[Aptitude-devel] Bug#799918: Bug#799918: apt-get proves I am innocent

[Manuel A. Fernandez Montecelo]

2015-10-24 0:15 GMT+01:00 積丹尼 Dan Jacobson <jidanni at jidanni.org>:
>>>>>> "MAFM" == Manuel A Fernandez Montecelo <manuel.montezelo at gmail.com> writes:
>
> MAFM> The idea is that you install libgdal1i from testing first
> MAFM> (1.11.2+dfsg-3), then install qgis also from testing (with all of the
> MAFM> versions of the dependency chain from testing).  Which maybe you do,
> MAFM> but not shown in the actions above.
>
> Oops you are right, I never imagined you meant that I needed to adjust my
> sources.lists, so still haven't tried that method in fact. (And don't
> want to.)

That's what you would need to get qgis installed, that I thought that
you were interested in.


> MAFM> In any case, gdal is in a middle of a transition [1].  In unstable,
> MAFM> qgis depends on libgdal.so.1-1.11.2, provided by
> MAFM> libgdal1i=1.11.2+dfsg-3, and qgis also depends on python-qgis, which
> MAFM> in turn depends on python-qgis-common, which in turn depends on
> MAFM> python-gdal, which depends on libgdal.so.1-1.11.3 provided by
> MAFM> libgdal1i=1.11.3+dfsg-2, which of course cannot stay in the system as
> MAFM> the same time as libgdal1i=1.11.2+dfsg-3.
>
> MAFM> So the packages will not be able to be installed/upgraded until all of
> MAFM> the chain of dependencies decide move on to depend on
> MAFM> libgdal.so.1-1.11.3 (provided by libgdal1i=1.11.3+dfsg-2), or in other
> MAFM> words, until the transition is over.
>
> MAFM> [1] https://release.debian.org/transitions/html/gdal-1.11.3.html
>
> So apt-get and aptitude are right, and indeed the package is
> uninstallable (unless one adjusts their sources.lists perhaps.) So
> therefore this bug should be transferred back to the offending package
> in the first place (please do), with the final court verdict that indeed
> it is doing something wrong, no?

It is not a bug, it's a consequence of the packages being involved in
transitions, and they are par of the course of development of Debian.
When all packages in the transition are rebuilt against the package
causing the transition, they will be installable again.

stable and testing are supposed to be free of that (althought the big
gcc-5/C++11 ABI transition affected testing as well, I think).
unstable and experimental are not, because it is where the development
happens.


Cheers.
-- 
Manuel A. Fernandez Montecelo <manuel.montezelo at gmail.com>