problems upgrading from 14.04 to 16.04

[J.L. Blom]

On 28/09/16 18:18, Ralf Mardorf wrote:
> On Wed, 28 Sep 2016 18:12:32 +0200, Ralf Mardorf wrote:
>>> On Wed, 28 Sep 2016 17:35:39 +0200, J.L. Blom wrote:
>>>>   libstdc++6 : Depends: gcc-5-base (= 5.4.0-6ubuntu1~16.04.2) but
>>>> 5.4.1-2ubuntu1~14.04 is to be installed
>>>>
>>>> @Ralf: no, contrary to your suggestion I have never updated from an
>>>> unofficial ubuntu source. I have installed some KDE packages as they
>>>> gave me possibilities I needed which were not available from gnome.
>>>> It is becoming a nightmare as removing libkolabxml1 is not possible
>>>> (gives the same errors) and I don't know what happens if I try to
>>>> remove libstdc++6.
>> My apologies :D, wrong package. To be continued...
> Ok, this is the correction, so from where exactly is gcc-5-base
> 5.4.1-2ubuntu1~14.04?
>
> "Package: gcc-5-base (5.4.0-6ubuntu1~16.04.2 and others) [security]"
> - http://packages.ubuntu.com/xenial/gcc-5-base
>
> "Package: gcc-5-base (5.4.0-6ubuntu1~16.04.2)"
> - http://packages.ubuntu.com/xenial-updates/gcc-5-base
>
> Regarding http://packages.ubuntu.com/ for trusty no package named
> gcc-5-base is available at all.
>
> Regards,
> Ralf
>
>
Ralf,
I always only update using the formal ubuntu repositories.
There is apparently something seriously wrong.
I started software-properties-gtk it wouldn't update the package list 
bit came with this list of errors;
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W:The repository 'http://security.ubuntu.com/ubuntu xenial-security 
Release' does not have a Release file., W:Data from such a repository 
can't be authenticated and is therefore potentially dangerous to use., 
W:See apt-secure(8) manpage for repository creation and user 
configuration details., E:Failed to fetch 
http://security.ubuntu.com/ubuntu/dists/xenial-security/restricted/source/Sources 
Cannot initiate the connection to security.ubuntu.com:80 
(2001:67c:1360:8001::17). - connect (101: Network is unreachable) [IP: 
2001:67c:1360:8001::17 80], E:Some index files failed to download. They 
have been ignored, or old ones used instead.
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I found a lot of crash- and error-reports at /home/joep/cache/. I would 
like to know where a log of the update, that apparently went wrong, can 
be found. I have of course looked in /var/log but I can not fine where 
it is stored and I would think a version upgrade must be stored somewhere.
T o answer your question: I don't know where that came from as I have 
never used unofficial repositories for uuntu (as I already said).
Joep


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