On the initial installation screen, select Install Red Hat Enterprise Linux 7.3 and press Enter.Select EFI USB Device(Virtual DVD_ROM VM 1.1.0) and press Enter.In the displayed dialog box, enter the password (default password: Select Boot Manager and press Enter. During the startup, press Del as prompted. On the KVM screen, click on the toolbar, select Image File, select an image file to be mounted, and click Connect. Mount the OS ISO file to the virtual DVD drive.The procedure for installing RHEL 7.4/7.6 for SAP is the same as that for installing RHEL 7.3 for SAP. This section uses RHEL 7.3 for SAP as an example to describe how to install the OS.