eth-if-names.md

@@ -13,7 +13,16 @@ mv ifcfg-eth0 ifcfg-ethctrl
 sed -i 's/eth0/ethctrl/' ifcfg-ethctrl
 mv ifcfg-eth1 ifcfg-ethdata
 sed -i 's/eth1/ethdata/' ifcfg-ethdata
+
+# change grub
+line=$(cat /etc/default/grub | grep "GRUB_CMDLINE_LINUX")
+linenew=$(echo ${line::-1}" net.ifnames=0\"")
+echo "please change if not correct:"
+echo $linenew
+linenew=$(echo $linenew | sed 's/\//\\\//g')
+sed 's/GRUB_CMDLINE_LINUX.*$/'"${linenew}"'/' /etc/default/grub
 ```
+
 2. Tell udev to rewrite. Create `/etc/udev/rules.d/70-persistent-net.rules` with:
 
 ```