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<p>Hi Gloria,</p>
<p>You could install QGIS in a virtual machine using Virtual Box or
in a container with Docker
(<a class="moz-txt-link-freetext" href="https://github.com/qgis/QGIS/tree/master/.docker#running-qgis">https://github.com/qgis/QGIS/tree/master/.docker#running-qgis</a>).</p>
<p>This way you'll be safe of any bad changes.<br>
</p>
<div class="moz-cite-prefix">Le 23/02/2021 à 11:23, SENFAUTE Gloria
a écrit :<br>
</div>
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<p class="MsoNormal"><span lang="EN-US">Dear all, <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In case, you can write
in French!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I need a strong help for
updating or installing last version of QGIS.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Working in linus (Debian
GNU/Linux 9 (stretch) 64 bits).<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In my computer I have a
version of QGIS (2.4 ESSEN).
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In few days I will have
my first training with QGIS and I must to install: QGIS
3.10.14 LTR.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I would like to know
what is the better way:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">1)To update of QGIS 2.4
to 3.10.14 LTR, <b>
How to do it</b> ? <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2) To remove QGIS 2.4
and then re-install following the steps of QGIS site for
linus ?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am so afraid of this
last solution: if I remove and I cannot install the new
QGIS.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I administrator of my
computer but I have also many proxis installed by my
company, so I didn’t try, I am waiting for advises.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank you very much !<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Gloria<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p> </o:p></span></p>
<table class="MsoNormalTable" style="width:462.0pt" width="0"
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<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><img
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moz-do-not-send="true" width="110" height="60"></span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
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1.5pt;height:11.25pt" width="498" valign="top">
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"> </span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
</td>
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<p class="MsoNormal"><b><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#FF8100;mso-fareast-language:FR">Gloria
SENFAUTE</span></b><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><br>
</span><b><span
style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#FF8100;mso-fareast-language:FR">Ingénieur
Chercheur, PhD</span></b><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><br>
</span><span
style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#0062E1;mso-fareast-language:FR">Expert
Aléa Sismique<br>
Département Electrotechnique et Mécanique des
Structures - ERMES<br>
Groupe Séisme et Impacts, EDF Lab Paris-Saclay<br>
7 Boulevard Gaspard Monge<br>
91120 Palaiseau</span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"> <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><b><span
style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#0062E1;mso-fareast-language:FR"><a class="moz-txt-link-abbreviated" href="mailto:gloria.senfaute@edf.fr">gloria.senfaute@edf.fr</a><o:p></o:p></span></b></p>
</div>
<p class="MsoNormal"><span
style="font-size:8.5pt;font-family:"Arial",sans-serif;color:#0062E1;mso-fareast-language:FR">Tél. :
33 1 78193433</span><span
style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:FR"><o:p></o:p></span></p>
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<p class="MsoNormal"><span
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