[patch] This adds a loop of up to 3 seconds to wait for the device

linuxrc_wait.patch (text/plain), 931 bytes, created by John Klug on 2016-05-14 03:34:27 UTC

# Root may not be ready when the linuxrc
# script probes for root.  This results
# in a wait for input at every boot.
# A return at the prompt is a workaround.
# My system was set to UEFI boot.  The
# root drive was drive sdb.  The drive was
# an SD card on a USB 3.0 dongle.
diff -u a/linuxrc b/linuxrc
--- a/linuxrc	2016-05-13 17:12:46.604906262 -0500
+++ b/linuxrc	2016-05-13 17:13:06.100905565 -0500
@@ -492,6 +492,9 @@
 do
 	while [ "${got_good_root}" != '1' ]
 	do
+		COUNTER=0
+		# Start of sleep loop waiting on root
+		while [ ${COUNTER} -lt 30 -a "${got_good_root}" != '1' ] ; do
 		case "${REAL_ROOT}" in
 			LABEL=*|UUID=*)
 
@@ -577,6 +580,11 @@
 				;;
 		esac
 
+		if [ "${got_good_root}" != '1' ] ; then
+		  let COUNTER=${COUNTER}+1
+		  usleep 100
+		fi
+		done  # End of sleep loop waiting on root
 		if [ "${REAL_ROOT}" = '' ]
 		then
 			# No REAL_ROOT determined/specified. Prompt user for root block device.