I've attached the full log.Error: Transaction check error: file /lib from install of VirtualBox-6.0-6.0.11_133020_el8-1.x86_64 conflicts with file from package filesystem-3.8-2.el8.x86_64 file /sbin from install of VirtualBox-6.0-6.0.11_133020_el8-1.x86_64 conflicts with file from package filesystem-3.8-2.el8.x86_64 file /usr/bin from install of VirtualBox-6.0-6.0.11_133020_el8-1.x86_64 conflicts with file from package filesystem-3.8-2.el8.x86_64 file /usr/lib from install of VirtualBox-6.0-6.0.11_133020_el8-1.x86_64 conflicts with file from package filesystem-3.8-2.el8.x86_64
Inspecting the rpm using rpm2cpio ... | cpio -tv suggests there might be a packaging problem as it does indeed explicitly list the above directories, and many other common ones, whereas non-testbuild VirtualBox-6.0-6.0.8_130520_el7-1.x86_64.rpm doesn't include them.