problems upgrading from 14.04 to 16.04

[Colin Law]

On 26 September 2016 at 12:04, J.L. Blom <joep at neuroweave.nl> wrote:
> _______________________________
>
> joep at laguna:~$ sudo apt-get -f install
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Correcting dependencies... failed.
> The following packages have unmet dependencies:
>  libstdc++6 : Depends: gcc-5-base (= 5.4.0-6ubuntu1~16.04.2) but
> 5.4.1-2ubuntu1~14.04 is installed
>               Breaks: libkolabxml1 (<= 1.1.0-3) but 1.0.1-0ubuntu3 is
> installed
>               Breaks: libstdc++6:i386 (!= 5.4.0-6ubuntu1~16.04.2) but
> 6.2.0-3ubuntu11~14.04 is installed
>  libstdc++6:i386 : Breaks: libstdc++6 (!= 6.2.0-3ubuntu11~14.04) but
> 5.4.0-6ubuntu1~16.04.2 is installed
> E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused
> by held packages.
> E: Unable to correct dependencies
> ___________________________________________
>
> It looks like it didn't remove the old libraries but how to solve that
> without breaking much more is my problem.
> When I mentioned in my former mail that I solved the problem with the
> graphics not starting and apt-get not working, that was solved by installing
> another version of libstdc++6:amd64 by downloading
> libstdc++6_5.4.0-6ubuntu1~16.04.2_amd64.deb and installing using dpkg. But I
> don't know how to solve - apparently the same problem - for :i386.

what does
apt-cache policy gcc-5-base
show?  It looks like that is held at the old version for some reason.

Colin


> Joep
>