File 0206-nfs_dns_alias.patch of Package dracut.openSUSE_Leap_15.1_Update

From: Fabian Vogt <fvogt@suse.com>
Subject: NFS: Support host being a DNS ALIAS

The "host" command may also print something else than
"asdf.local.lan has address 1.2.3.4", like:
"rootserver.local.net is an alias for rainbow.local.net.".
So "head -n1" is not enough.

Fixes boo#955592

---
 modules.d/95nfs/module-setup.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: dracut-043/modules.d/95nfs/module-setup.sh
===================================================================
--- dracut-043.orig/modules.d/95nfs/module-setup.sh
+++ dracut-043/modules.d/95nfs/module-setup.sh
@@ -53,7 +53,7 @@ cmdline() {
     if [[ $nfs_device = [0-9]*\.[0-9]*\.[0-9]*.[0-9]* ]] || [[ $nfs_device = \[.*\] ]]; then
         nfs_address="${nfs_device%%:*}"
     else
-        lookup=$(host "${nfs_device%%:*}"| head -n1)
+        lookup=$(host "${nfs_device%%:*}"| grep " address " | head -n1)
         nfs_address=${lookup##* }
     fi
     ifname=$(ip -o route get to $nfs_address | sed -n 's/.*dev \([^ ]*\).*/\1/p')