enhance confignetwork -s return code (#4789)

* enhance confignetwork -s return code

* restart nic when updatenode and postbootscripts

* enhance >/dev/null 2>&1

* polished

xCAT/postscripts/configeth

@@ -640,7 +640,9 @@ elif [ "$1" = "-s" ];then
         fi
     fi
 
-    ifdown $str_inst_nic;ifup $str_inst_nic
+    if [ "$UPDATENODE" = "1" ] || grep "REBOOT=TRUE" /opt/xcat/xcatinfo >/dev/null 2>&1; then
+        ifdown $str_inst_nic;ifup $str_inst_nic
+    fi 
     if [ $? -ne 0 ]; then
         log_error "ifup $str_inst_nic failed."
         error_code=1

xCAT/postscripts/confignetwork

@@ -632,7 +632,7 @@ if [ $boot_install_nic -eq 1 ];then
         echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
         log_info "configure the install nic $installnic. "
         instnic_conf=1
-        configeth -s $installnic |log_lines info
+        configeth -s $installnic 
         if [ $? -ne 0 ]; then
             errorcode=1
         fi

xCAT/postscripts/nicutils.sh

@@ -77,7 +77,7 @@ function log_lines {
 function log_error {
     local __msg="$*"
     $log_print_cmd $log_print_arg "[E]:Error: $__msg" 
-    return 0
+    return 1
 }
 
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