eth-if-names.md

@@ -21,6 +21,7 @@ echo "please change if not correct:"
 echo $linenew
 linenew=$(echo $linenew | sed 's/\//\\\//g')
 sed 's/GRUB_CMDLINE_LINUX.*$/'"${linenew}"'/' /etc/default/grub
+grub2-mkconfig -o /boot/grub2/grub.cfg
 ```
 
 2. Tell udev to rewrite. Create `/etc/udev/rules.d/70-persistent-net.rules` with: