CheckForNetwork
if [ "${NETWORKUP}" = "-NO-" ]; then exit 0; fi
-/System/Library/StartupItems/NetworkTime/NetworkTime start
-/System/Library/StartupItems/NIS/NIS start
-/System/Library/StartupItems/NFS/NFS start
+if [ -x /System/Library/StartupItems/NetworkTime/NetworkTime ]; then
+ /System/Library/StartupItems/NetworkTime/NetworkTime start
+fi
+
+if [ -x /System/Library/StartupItems/NIS/NIS ]; then
+ /System/Library/StartupItems/NIS/NIS start
+fi
+
+if [ -x /System/Library/StartupItems/NFS/NFS ]; then
+ /System/Library/StartupItems/NFS/NFS start
+fi
exit 1