[Qgis-user] QGIS through conda on Linux

[Bernd Vogelgesang]

Soooo,

I thought to share my steps so far, so I will not have to ask again in 
some weeks ;)

terminal:
$ curl -L -O 
"https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-$(uname)-$(uname 
-m).sh"
bash Miniforge3-$(uname)-$(uname -m).sh

was asked to deactivate the base environment and confirmed, but somehow 
this did not happen, so:

$ conda config --set auto_activate_base false

$ conda create --name qgis_3.34

then I got warned that there is a newer version of conda (strange, why 
isn't the new version installed right away?).
So done as told:

$ conda update -n base -c conda-forge conda

$ conda activate qgis_3.34

conda install qgis=3.34

stuff is installed, but again the warning to update

finally:
WARNING: No ICDs were found. Either, 

- Install a conda package providing a OpenCL implementation (pocl, 
oclgrind, intel-compute-runtime, beignet) or 

- Make your system-wide implementation visible by installing 
ocl-icd-system conda package.

That stuff is exactly what I was messing around with for the past week 
to get the graphics card support in QGIS. Gnrrr...!

So, what to do now? I feel like panicking ... ;)





Am 26.02.24 um 14:21 schrieb Johannes Kröger (WhereGroup):
> Don't feel dumb, it is all written and spread out in super complicated 
> ways but once running, it's alright-ish.
> 
> Normal Miniforge3 should be fine unless you know you want pypy.
> Unless you know differently, try the "Miniforge3-Linux-x86_64" version.
> Mamba is something hidden in the background, for you it will pretend to 
> be Conda. Conda is the original project, mamba is a faster, compatible 
> alternative.
> Miniforge is something that comes with mamba "as conda" and 
> automatically uses the big "conda-forge" repository where lots of 
> software and libraries are available, packaged by the community.
> 
> You can use the command lines from 
> https://github.com/conda-forge/miniforge?tab=readme-ov-file#install
> 
> After installation I recommend: $ conda config --set auto_activate_base 
> false
> Otherwise every terminal/shell session will run using a conda 
> environment instead of your standard system environment.
> 
> Once installed, you can use the "create" line from other previous mail 
> to install a QGIS environment. Then "conda activate qgis_3.34" to 
> activate it in a terminal session, "qgis" in that same terminal to 
> launch that QGIS and just close the terminal or enter "conda deactivate" 
> to deactivate it again.
> 
> Cheers, Hannes
> 
> 
> On 26.02.24 13:41, Bernd Vogelgesang wrote:
>> Hi Hannes,
>>
>> Thanks for you answer. I played around before with those snakes and 
>> that's what maybe brought me into trouble.
>>
>> And again, this zoo of species starts to confuse me, starting with the 
>> installer:
>> Miniforge3 or Miniforge-pypy3 ?
>> And when does the mamba come into play instead of the conda?
>>
>> Sorry for me playing the dumb, but I almost spent a week trying to get 
>> things back to normal here at my desk.
>>
>> Cheers,
>> Bernd
>>
>> Am 26.02.24 um 12:35 schrieb Johannes Kröger (WhereGroup):
>>> Hi Bernd,
>>>
>>> a pragmatic solution which I have grown to like is using conda 
>>> environments. Using mamba instead of the default conda via 
>>> https://github.com/conda-forge/miniforge to reduce annoyances and 
>>> then it is for example a simple "conda --create qgis_3.34 qgis=3.34" 
>>> to get a nicely isolated QGIS 3.34 with pdal etc.
>>>
>>> Just make sure to deactivate the base environment in your 
>>> terminal/shell, otherwise you are trading one potential mess for 
>>> another ;)
>>>
>>> Cheers, Hannes
>>>
>>> On 26.02.24 12:10, Bernd Vogelgesang via QGIS-User wrote:
>>>> Hi,
>>>> using QGIS on the "normal" ubuntu-based Linux Mint for years, I 
>>>> again managed to render my system unusable by playing around too 
>>>> much, resulting in ever crashing QGIS so I even had to reactivate a 
>>>> Windows Virtual Box to be able to work!!
>>>>
>>>> After a hell of problems with NVIDIA graphics drivers (opencl 
>>>> support in QGIS), I finally managed to get everything to work with 
>>>> Linux Mint Debian edition ... but now had to learn that Debian does 
>>>> not provide PDAL for point cloud stuff in the repositories.
>>>>
>>>> Long story short: Can anyone give me recommendations how to get PDAL 
>>>> working with QGIS that do NOT include building PDAL and QGIS by myself?
>>>> Though I USE Linux for over 15 years,I would prefer avoiding that.
>>>> Fumbling around with too less insight on what I am actually doing 
>>>> just led me here...
>>>>
>>>> Cheers,
>>>> Bernd
>>>>
>>>>
>>>>
>>>>
>>>>
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>>>
>>

-- 
Dipl.-Geogr.
Bernd Vogelgesang
Kappel 17
91355 Hiltpoltstein
Tel: 09192-3499427
mobil: 0163-1860160
mail at berndvogelgesang.de
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