diff -up ypserv-2.26/scripts/ypinit.in.emptydomain ypserv-2.26/scripts/ypinit.in
--- ypserv-2.26/scripts/ypinit.in.emptydomain 2011-11-24 09:12:31.267702768 +0100
+++ ypserv-2.26/scripts/ypinit.in 2011-11-24 09:13:09.881700121 +0100
@@ -156,7 +156,7 @@ then
exit 1
fi
-if [ -z "$DOMAIN" ]
+if [ "${DOMAIN}x" = "x" ] || [ "${DOMAIN}" = "(none)" ]
then
echo "The local host's domain name hasn't been set. Please set it."
exit 1