--- rc.sysinit.orig	2009-07-30 14:48:54.545395611 -0400
+++ rc.sysinit	2009-07-30 14:59:47.630395753 -0400
@@ -485,6 +485,9 @@
 		done
 	done
 
+        # Use resolv.conf passed by initramfs netboot
+        [ -f /dev/.initramfs/resolv.conf ] && cp /dev/.initramfs/resolv.conf /etc/
+
 	# In theory there should be no more than one network interface active
 	# this early in the boot process -- the one we're booting from.
 	# Use the network address to set the hostname of the client.  This

This patch copies resolv.conf from dracut netboot if it exists, allowing the following hostname setting to work.