File 0166-nfs-Add-ifname-dev-mac-to-boot-parameters.patch of Package dracut.892

From 85b55c7a4c6750c88415c376b516c25d7b2e5944 Mon Sep 17 00:00:00 2001
From: Thomas Renninger <trenn@suse.de>
Date: Fri, 17 Oct 2014 12:47:51 +0200
Subject: nfs: Add ifname=$dev:$mac to boot parameters

This is needed to be able to uniqule identify the NIC, also if renaming
of the network device is in place.

References: bnc#900831

Signed-off-by: Thomas Renninger <trenn@suse.de>
---
 modules.d/95nfs/module-setup.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/modules.d/95nfs/module-setup.sh b/modules.d/95nfs/module-setup.sh
index b6ddb21..cc11d98 100755
--- a/modules.d/95nfs/module-setup.sh
+++ b/modules.d/95nfs/module-setup.sh
@@ -60,6 +60,11 @@ cmdline() {
         nfs_address=${lookup##* }
     fi
     ifname=$(ip -o route get to $nfs_address | sed -n 's/.*dev \([^ ]*\).*/\1/p')
+    if [ -e /sys/class/net/$ifname/address ] ; then
+        ifmac=$(cat /sys/class/net/$ifname/address)
+        printf 'ifname=%s:%s ' ${ifname} ${ifmac}
+    fi
+
     printf 'ip=%s:static\n' ${ifname}
 }
 
-- 
1.8.4.5