From ed30034da733f30616972c83ad94a74ad373ae2a Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel@debian.org>
Date: Sun, 18 Apr 2010 20:42:08 +0200
Subject: [PATCH] Adding upstream version 1.173.2.

---
 scripts/live | 73 ++++++++++++++++++++++++++++++++----------------------------
 1 file changed, 39 insertions(+), 34 deletions(-)

diff --git a/scripts/live b/scripts/live
index e17f66f..9baf5a9 100755
--- a/scripts/live
+++ b/scripts/live
@@ -401,6 +401,11 @@ Arguments ()
 				export NOPERSISTENT
 				;;
 
+			quickusbmodules)
+				QUICKUSBMODULES="Yes"
+				export QUICKUSBMODULES
+				;;
+
 			preseed/file=*|file=*)
 				LOCATION="${ARGUMENT#*=}"
 				export LOCATION
@@ -1101,15 +1106,10 @@ setup_unionfs ()
 	# Let's just mount the read-only file systems first
 	rofsstring=""
 	rofslist=""
-	minor_kernel_version=$(uname -r|cut -c 5-|sed 's/[^0-9].*//')
 
-	if [ "${NETBOOT}" = "nfs" ] && [ "${minor_kernel_version}" -lt 22 ]
+	if [ "${UNIONTYPE}" = "aufs" ]
 	then
-		# go aroung a bug in nfs-unionfs locking for unionfs <= 1.4
-		roopt="nfsro"
-	elif [ "${UNIONTYPE}" = "aufs" ]
-	then
-		roopt="rr"
+		roopt="rr,xino=/tmp/aufs.xino"
 	else
 		roopt="ro"
 	fi
@@ -1223,37 +1223,40 @@ setup_unionfs ()
 	# Looking for "${root_persistence}" device or file
 	if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
 	then
-		# Load USB modules
-		num_block=$(ls -l /sys/block | wc -l)
-		for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
-		do
-			modprobe -q -b ${module}
-		done
-
-		if [ -x /sbin/udevadm ]
+		if [ -z "${QUICKUSBMODULES}" ]
 		then
-			# lenny
-			udevadm trigger
-			udevadm settle
-		else
-			# etch
-			udevtrigger
-			udevsettle
-		fi
-
-		# For some reason, udevsettle does not block in this scenario,
-		# so we sleep for a little while.
-		#
-		# See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
-		for timeout in 5 4 3 2 1
-		do
-			sleep 1
+			# Load USB modules
+			num_block=$(ls -l /sys/block | wc -l)
+			for module in sd_mod uhci-hcd ehci-hcd ohci-hcd usb-storage
+			do
+				modprobe -q -b ${module}
+			done
 
-			if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
+			if [ -x /sbin/udevadm ]
 			then
-				break
+				# lenny
+				udevadm trigger
+				udevadm settle
+			else
+				# etch
+				udevtrigger
+				udevsettle
 			fi
-		done
+
+			# For some reason, udevsettle does not block in this scenario,
+			# so we sleep for a little while.
+			#
+			# See https://bugs.launchpad.net/ubuntu/+source/casper/+bug/84591
+			for timeout in 5 4 3 2 1
+			do
+				sleep 1
+
+				if [ $(ls -l /sys/block | wc -l) -gt ${num_block} ]
+				then
+					break
+				fi
+			done
+		fi
 
 		# search for label and files (this could be hugely optimized)
 		cowprobe=$(find_cow_device "${root_persistence}")
@@ -1515,6 +1518,7 @@ find_livefs ()
 					fi
 				fi
 			done
+			return 1
 			;;
 
 		removable)
@@ -1531,6 +1535,7 @@ find_livefs ()
 					done
 				fi
 			done
+			return 1
 			;;
 
 		*)
-- 
2.1.4