networking red: add delay to wait for carrier

some nic's need some time after link up to get a carrier

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

src/initscripts/networking/red

@@ -131,6 +131,24 @@ case "${1}" in
 			ip route add default via ${GATEWAY} dev ${DEVICE}
 			evaluate_retval
 			
+			# has carrier ?
+			if [ ! "$(</sys/class/net/${DEVICE}/carrier)" = "1" ]; then
+				boot_mesg -n "Wait for carrier on ${DEVICE} "
+				for (( i=30; i>1; i-- )) do
+					if [ "$(</sys/class/net/${DEVICE}/carrier)" = "1" ]; then
+						break;
+					fi
+					boot_mesg -n "."
+					sleep 2
+				done
+				boot_mesg ""
+				if [ ! "$(</sys/class/net/${DEVICE}/carrier)" = "1" ]; then
+					echo_failure
+				else
+					echo_ok
+				fi
+			fi
+
 			run_subdir ${rc_base}/init.d/networking/red.up/
 
 			# Configure aliases only if red static