<div dir="ltr"><blockquote type="cite"><pre><span style="font-family:Arial,Helvetica,sans-serif">Hi Greg, </span>
</pre>
    </blockquote><div dir="ltr"><div><br></div><div>Thank you for your reply.</div><div>I do have the libOSMesa.so exist in our /usr/lib64/ directory. But it seems not the one ChimeraX is trying to import.</div><div>The ldd result show as the following:</div><div><p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures">ldd ./libexec/UCSF-ChimeraX/lib/python3.8/site-packages/osmesa/libOSMesa.so.8.0.0</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures">./libexec/UCSF-ChimeraX/lib/python3.8/site-packages/osmesa/libOSMesa.so.8.0.0: /lib64/libm.so.6: version `GLIBC_2.29' not found (required by ./libexec/UCSF-ChimeraX/lib/python3.8/site-packages/osmesa/libOSMesa.so.8.0.0)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>linux-vdso.so.1 (0x00007ffe625ef000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libz.so.1 => /lib64/libz.so.1 (0x00007fbcc8d47000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fbcc8b27000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libdl.so.2 => /lib64/libdl.so.2 (0x00007fbcc8923000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libLLVM-10.so.1 => not found</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007fbcc858e000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libm.so.6 => /lib64/libm.so.6 (0x00007fbcc820c000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libc.so.6 => /lib64/libc.so.6 (0x00007fbcc7e4a000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fbcc7c32000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>/lib64/ld-linux-x86-64.so.2 (0x00007fbcc97eb000)</span></p></div><div>On our centos 8 VM, it shows as:</div><div>





<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>linux-vdso.so.1 =><span class="gmail-Apple-converted-space">  </span>(0x00007ffebc3c3000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libz.so.1 => /lib64/libz.so.1 (0x00007f2fcf0c3000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f2fceea6000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libdl.so.2 => /lib64/libdl.so.2 (0x00007f2fceca2000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span><a href="http://libLLVM-3.9-mesa.so">libLLVM-3.9-mesa.so</a> => /lib64/<a href="http://libLLVM-3.9-mesa.so">libLLVM-3.9-mesa.so</a> (0x00007f2fccd71000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007f2fcca68000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libm.so.6 => /lib64/libm.so.6 (0x00007f2fcc766000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libc.so.6 => /lib64/libc.so.6 (0x00007f2fcc3a3000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f2fcc18c000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>/lib64/ld-linux-x86-64.so.2 (0x000055f2cf96c000)</span></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-stretch:normal;font-size:18px;line-height:normal;font-family:Monaco;color:rgb(248,255,252);background-color:rgba(0,0,0,0.9)"><span class="gmail-s1" style="font-variant-ligatures:no-common-ligatures"><span class="gmail-Apple-tab-span" style="white-space:pre">  </span>librt.so.1 => /lib64/../lib64/librt.so.1 (0x00007f2fcbf84000)</span></p></div><div><br></div><div>So I feel like the ChimeraX mesa is imported but not the system one. </div><div><br></div><div>Best, </div><div>Zhe</div></div></div>