Merge pull request #1764 from chrisnovakovic/initramfs-enable-dns

initramfs: enable DNS if network is up

packages/sysutils/busybox/scripts/init

@@ -1003,6 +1003,10 @@
     [ -f "/sysroot/usr/lib/systemd/systemd" ] || error "final_check" "Could not find systemd!"
   }
 
+  # If the network is up (due to the use of the "ip" kernel parameter) and a DNS
+  # server is known, allow the libc resolver to use it
+  grep '^\(nameserver\|domain\) ' /proc/net/pnp | grep -v '^nameserver 0\.0\.0\.0$' > /etc/resolv.conf
+
   if [ "${boot%%=*}" = "FILE" ]; then
     error "check arguments" "boot argument can't be FILE type..."
   fi