From 5177fb7a211b9056ad8f0df41371bbeaac25ed32 Mon Sep 17 00:00:00 2001
From: Ian Kelling <ian@iankelling.org>
Date: Tue, 9 Aug 2016 14:46:57 -0700
Subject: [PATCH] bug fixes for jessie & stretch

---
 fai/config/scripts/DEBIAN/30-interface | 21 +++++++++++++++++++++
 pxe-server                             |  7 +++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/fai/config/scripts/DEBIAN/30-interface b/fai/config/scripts/DEBIAN/30-interface
index 3d4d08f..6f2251a 100755
--- a/fai/config/scripts/DEBIAN/30-interface
+++ b/fai/config/scripts/DEBIAN/30-interface
@@ -3,6 +3,27 @@
 # modified from upstream fai example
 error=0; trap 'error=$(($?>$error?$?:$error))' ERR # save maximum error code
 
+if ! ifclass VM && ! ifclass STABLE; then
+    # get persistent interface name. Note, these class conditions
+    # will need to get modified for new oses. testing vm doesn't use
+    # it right now, but other vms do I'm sure.
+    for field in ID_NET_NAME_FROM_DATABASE \
+                     ID_NET_NAME_ONBOARD \
+                     ID_NET_NAME_SLOT \
+                     ID_NET_NAME_PATH \
+                     ID_NET_NAME_MAC; do
+        name=$(udevadm info /sys/class/net/$NIC1 | sed -rn "s/^E: $field=(.+)/\1/p")
+        if [[ $name ]]; then
+            NIC1=$name
+            break
+        fi
+    done
+    if [[ ! $name ]]; then
+        echo "$0: error: could not find systemd predictable network name"
+        exit 1
+    fi
+fi
+
 if ifclass DHCPC && [ $FAI_ACTION = "install" -o $FAI_ACTION = "dirinstall" ]
 then
     if ifclass VM; then
diff --git a/pxe-server b/pxe-server
index 6099ddb..5507e5d 100755
--- a/pxe-server
+++ b/pxe-server
@@ -121,8 +121,11 @@ if [[ $type == fai ]]; then
 fi
 
 if ! $persist; then
-    echo "waiting for 2 dhcp acks then disabling pxe"
-    ack-wait 2
+    # fai's debian jessie 8.5ish does 2 dhcp requests when booting,
+    # roughly 4 seconds apart. Earlier
+    # versions did just 1. Whatever.
+    echo "waiting for 3 dhcp acks then disabling pxe"
+    ack-wait 3
     set-pxe :
     if [[ $type == fai ]]; then
         # fai server can contain sensitive info, so turn it off
-- 
2.30.2