From Fedora Project Wiki

Anaconda VNC Shared Patch

Here is a patch that allows the VNC installer to be shared. Download this patch here: vnc-share.patch

diff -urN anaconda-9.2.orig/anaconda anaconda-9.2/anaconda
--- anaconda-9.2.orig/anaconda 2003-09-25 15:05:13.000000000 -0700
+++ anaconda-9.2/anaconda 2004-01-30 10:53:21.000000000 -0800
@@ -133,7 +133,7 @@
vncpid = os.fork()

if not vncpid:
- args = [ root + "/usr/bin/Xvnc", ":1", "-nevershared",
]+ args = [ root + "/usr/bin/Xvnc", ":1",
]"-depth", "16", "-geometry", "800x600",
"IdleTimeout=0", "-auth", "/dev/null"
"DisconnectClients=false", "desktop=%s" % (desktopname,)