Also don't you want to number your filename? /etc/udev/rules.d: -rw-r--r-- 1 root 913 2009-12-16 07:35 70-persistent-net.rules -rw-r--r-- 1 root 3784 2009-08-25 23:30 70-persistent-cd.rules -rw-r--r-- 1 root 649 2009-04-03 04:27 xpp.rules