If your server doesn’t have a DRAC, iLO or other network KVM, you can access the RHEL installer over the network using VNC:
- Boot from the RHEL DVD
- At the prompt, type:
linux vnc
- Skip the media check
- Select language
- Select automatic
- Select network interface
- Select DHCP or manual IP configuration
- (Manual only) Enter IP address, subnet mask, gateway and DNS server
- When prompted to connect, use a VNC viewer like TightVNC to access the server and continue in the graphical installer
Here’s a screencast showing the entire process from start to finish: