fixed dns

postinstall/init.sh

@@ -3,12 +3,13 @@
 # Sometimes the network is slow, wait a bit
 sleep 10
 
-# Get the current DHCP network address (and gateway)
+# Get the current DHCP network address, gateway and DNS servers
 NIC=$(ip link | grep "^2:" | awk '{print $2}' | tr -d ":")
 IP_ADDRESS=$(ip address show ${NIC} | grep -E "inet " | awk '{print $2}')
 NETMASK=$(echo ${IP_ADDRESS} | sed 's/.*\///')
 IP_ADDRESS=$(echo ${IP_ADDRESS} | sed 's/\/.*//')
 GATEWAY=$(ip route | grep "default" | awk '{print $3}')
+DNS_SERVERS=$(awk '/^nameserver/ {print $2}' /etc/resolv.conf)
 
 # Network interfaces (static address)
 cat << EOF > /etc/network/interfaces
@@ -19,10 +20,16 @@ auto ${NIC}
 iface ${NIC} inet static
   address ${IP_ADDRESS}/${NETMASK}
   gateway ${GATEWAY}
+  dns-nameservers ${DNS_SERVERS}
 EOF
 
 # Tabs instead of spaces, neat the file
 sed -i 's/  /\t/gm' /etc/network/interfaces
+# write a static resolv.conf
+rm -f /etc/resolv.conf
+for ns in ${DNS_SERVERS}; do
+  echo "nameserver ${ns}" >> /etc/resolv.conf
+done
 
 # Hosts file
 cat << EOF > /etc/hosts