We should keep configuration on eth0 regardless of systemd-networkd state as...

We should keep configuration on eth0 regardless of systemd-networkd state as eth0 may be used to mount vital partitions and eth0 should not go down until very last moment

ip

@@ -379,6 +379,9 @@ reconfigure_networking() {
 						echo "Address=$ip" >> /etc/systemd/network/$int.network
 					fi
 				done
+				if [ "$int" == "eth0"]; then
+					echo "KeepConfiguration=yes" >> /etc/systemd/network/$int.network
+				fi
 				if [ "$dynamic" == "1" ]; then
 					echo "" >> /etc/systemd/network/$int.network
 					echo "[DHCP]" >> /etc/systemd/network/$int.network