Hello Art, > I'm trying to download the rpm that will install this library. I do not see > it on the CentOS site. Any help would be appreciated. Google led me here: https://rpmfind.net/linux/rpm2html/search.php?query=libGLU.so.1 another way might be: yum whatprovides libGLU.so.1 this would display: Last metadata expiration check: 0:01:20 ago on Mon 27 Apr 2020 06:05:15 AM CEST. mesa-libGLU-9.0.0-15.el8.i686 : Mesa libGLU library Repo : AppStream Matched from: Provide : libGLU.so.1 so this should install the file: yum install mesa-libGLU I hope this helps, Timotheus