[Qgis-user] QGIS uninstalled after GDAL PPA install

[J. M]

Hi guys!

Well thanks for all that info! Ben, I completely failed to understand what
you explained before about your OS, but I get it now! I was happy with 3.10
anyway, so that's great. I'll have a go at removing ubuntugis-unstable and
I'll edit my source file accordingly. Incidentally, it might be a good idea
to explain that on the site because I've been redirected there many times
and always just gone somewhere else to get instructions about what to do.
For software engineers it's maybe logical, but for end users like me it
seemed like reference information, entirely unrelated to the actual
installation process.

Andre, thanks again! I'm not sure how to remove the ubuntugis files to be
honest, if purging QGIS doesn't work. I erased the GPG manually (sudo
nautilus) because I hadn't encountered an easy way, but then I ran
autoremove qgis and I thought that would take care of everything related to
it, including PPA's (the command removed stuff connected with FreeCAD, for
example, which has no connection whatsoever).
The key is for the whole ubuntugis project, regardless of the branch you
are using. Same goes for QGIS.
That makes sense, and explains the error message about it.

Okay, one last question:
And add "python3-qgis" to your install command.
I don't know enough about linux syntax to include this without dropping the
ball.
Maybe 'sudo apt-get install qgis qgis-plugin-grass python3-qgis'?
Should I start again and run autoremove qgis, etc, or can I attempt it from
where I am?

Thanks again!!
Jimi.

On Wed, Feb 26, 2020 at 10:03 AM Andre Joost <andre+joost at nurfuerspam.de>
wrote:

> Am 26.02.20 um 00:12 schrieb J. M:
>
> >     - I ran sudo apt-key list to check if the ubuntugis-unstable PPA was
> >     still listed as trusted, and it didn't appear
> >     - I added the ubuntugis stable PPA as recommended on
> >     https://trac.osgeo.org/ubuntugis/wiki/UbuntuGISRepository,
>
> That wiki is outdated, the qgis.org/ubuntugis packages are compiled
> against the ubuntugis *unstable* PPA, see
> <https://www.qgis.org/en/site/forusers/alldownloads.html#debian-ubuntu>
>
> I guess you are better off without anything from ubuntugis at the
> moment. So take the qgis.org/ubuntu-ltr bionic packages to avoid the
> PROJ6 problems others mentioned.
>
> You should run "apt-cache policy libgdal20" to see that you have GDAL
> 2.2.3 and nothing newer. See
> <
> https://askubuntu.com/questions/92019/how-to-install-specific-ubuntu-packages-with-exact-version
> >
> to learn how to install a specific version of a package.
>
> And add "python3-qgis" to your install command.
>
> > with sudo
> >     add-apt-repository ppa:ubuntugis/ppa, and it appeared to duplicate
> your
> >     command sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-key
> >     51F523511C7028C3. Is that possible when they appear to reference two
> >     different PPA's?
>
> The key is for the whole ubuntugis project, regardless of the branch you
> are using. Same goes for QGIS.
>
> >     - I ran sudo apt-get install qgis qgis-plugin-grass and received the
> >     following error message, similar to before:
> >
> > The following packages have unmet dependencies.
> >   qgis : Depends: gdal-abi-2-2-3
>
> Seems to be a non-ubuntugis package, but You don't have the GDAL version
> 2.2.3 installed, but a newer one from ubuntugis. Try to get rid of that
> to remove all follow-up error messages.
>
> HTH,
> Andre Joost
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20200226/3076662d/attachment.html>