If your target system will be booting over the network, VNC is still available. Just add the
vnc command to the kickstart file for the system. You will be able to connect to the target system using your VNC viewer and monitor the installation progress. The address to use is the one the system is configured with via the kickstart file.
If you are using DHCP for the target system, the reverse
vncconnect method may work better for you. Rather than adding the
vnc boot parameter to the kickstart file, add the
vncconnect=HOST parameter to the list of boot arguments for the target system. For HOST, put the IP address or DNS host name of the VNC viewer system. See the next section for more details on using the vncconnect mode.