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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Tyler,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">And thanks for your feedback.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Your issue is likely related to the issue here:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><a href="https://github.com/OSGeo/grass/issues/1872">https://github.com/OSGeo/grass/issues/1872</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Given that this obviously has wider consequences I took the liberty to elevate priority of the issue as a blocker…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">A workaround will be available in GRASS 7.8.7 (or GRASS 8.0). Will see if it is possible to solve this temporarily via packaging… But a proper fix is needed.<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Cheers<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Stefan<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> grass-dev <grass-dev-bounces@lists.osgeo.org>
<b>On Behalf Of </b>Tyler D. Rudolph<br>
<b>Sent:</b> fredag 29. oktober 2021 17:49<br>
<b>To:</b> grass-dev@lists.osgeo.org<br>
<b>Subject:</b> [GRASS-dev] GRASS 'Unable to load GDAL library' when processing linked maps<o:p></o:p></span></p>
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<p class="MsoNormal">I get an error message when I try to run the following on a linked 'GDAL-supported pseudo-GRASS raster map':<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">> r.external input=myraster.tif output=myraster</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">> r.null map=myraster setnull=0</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">ERROR: Unable to load GDAL library</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">When I run the same on a GRASS raster map, however, no error is triggered:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">> r.in.gdal input=myraster.tif output=myraster</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">> r.null map=myraster setnull=0</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Courier New"">100%</span><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Is this expected behaviour? If so, and drawing such errors is unavoidable, then I will cease to use linked maps in future. However, in the interest of limiting storage space requirements, I find r.external and v.external to be effective
ways of managing existing data without the need for duplication, so if avoiding such errors is feasible, I suggest this would be a valuable feature to consider for future releases.<o:p></o:p></p>
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