Migratation from CentOS 8 to Springdale Linux 8
      
     # dnf update -y
     # rpm -e --nodeps centos-backgrounds 
     # rpm -e --nodeps centos-indexhtml 
     # rpm -e --nodeps centos-gpg-keys 
     # rpm -e --nodeps centos-linux-release 
     # rpm -e --nodeps centos-linux-repos 
     # rpm -e --nodeps centos-logos
     # rpm -e --nodeps centos-logos-httpd
     # rpm -ivh \
         http://springdale.princeton.edu/data/springdale/8/x86_64/os/BaseOS/Packages/springdale-appstream-8-0.sdl8.2.noarch.rpm \
         http://springdale.princeton.edu/data/springdale/8/x86_64/os/BaseOS/Packages/springdale-core-8-0.sdl8.2.noarch.rpm \
         http://springdale.princeton.edu/data/springdale/8/x86_64/os/BaseOS/Packages/springdale-release-8.3-0.42.el8.x86_64.rpm
     # dnf distro-sync -y
     # yum -y install springdale-logos-httpd