-Try to increase reliability of DHCPRELEASE attempts

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@6578 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT-nbroot/overlay/bin/rebootnode

@@ -1,5 +1,6 @@
 for udhcpc in `ps axf|grep -i udhcpc|grep -v grep|awk '{print $1}'`; do
     kill -USR2 $udhcpc
 done
+sleep 5
 reboot -f
 

xCAT-nbroot/overlay/etc/init.d/S10autodetect

@@ -93,7 +93,7 @@ NICSTOWAIT=`/sbin/ifconfig -a|grep HWaddr|grep ^eth|sed -e 's/ .*//'`
 for nic in $NICSTOWAIT; do
     touch /tmp/ignorenic.$nic
 	ifconfig $nic up
-	(udhcpc -i $nic -R;kill `ps axf|grep "udhcpc -i $nic -R"|awk '{print $1}'`; sleep 1; rm /tmp/ignorenic.$nic; udhcpc -i $nic -R -C) &
+	(udhcpc -i $nic -R;kill -USR2 `ps axf|grep -v grep|grep "udhcpc -i $nic -R"|awk '{print $1}'`;kill `ps axf|grep -v grep|grep "udhcpc -i $nic -R"|awk '{print $1}'`; rm /tmp/ignorenic.$nic; udhcpc -i $nic -R -C) &
 done