X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=bae91939dd66e90780791a66ff653e5eff61f0f4;hb=42c5f422167141f423134f1120409d5cf4967427;hp=9baf5a957b5cc528453237d1db3cdd742145c6e9;hpb=a16e96b9f2baf702da7104d6ccd3bf61dbd49319;p=live-boot-grml.git

diff --git a/scripts/live b/scripts/live
index 9baf5a9..bae9193 100755
--- a/scripts/live
+++ b/scripts/live
@@ -100,6 +100,16 @@ Arguments ()
 				export DEVICE
 				;;
 
+			ethdevice=*)
+				ETHDEVICE="${ARGUMENT#ethdevice=}"
+				export ETHDEVICE
+				;;
+
+			ethdevice-timeout=*)
+				ETHDEV_TIMEOUT="${ARGUMENT#ethdevice-timeout=}"
+				export ETHDEV_TIMEOUT
+				;;
+
 			fetch=*)
                                 FETCH="${ARGUMENT#fetch=}"
                                 export FETCH
@@ -762,18 +772,51 @@ do_netmount ()
 
 	modprobe -q af_packet # For DHCP
 
-	if [ -x /sbin/udevadm ]
-	then
-		# lenny
-		udevadm trigger
-		udevadm settle
-	else
-		# etch
-		udevtrigger
-		udevsettle
+	udevadm trigger
+	udevadm settle
+
+	# if ethdevice was not specified on the kernel command line
+	# make sure we try to get a working network configuration
+	# for *every* present network device (except for loopback of course)
+	if [ -z "$ETHDEVICE" ] ; then
+		echo "If you want to boot from a specific device use bootoption ethdevice=..."
+		for device in /sys/class/net/*; do
+			dev=${device##*/} ;
+			if [ "$dev" != "lo" ] ; then
+				ETHDEVICE="$ETHDEVICE $dev"
+			fi
+		done
 	fi
 
-	ipconfig ${DEVICE} | tee /netboot.config
+	# split args of ethdevice=eth0,eth1 into "eth0 eth1"
+	for device in $(echo $ETHDEVICE | sed 's/,/ /g') ; do
+		devlist="$devlist $device"
+	done
+
+	[ -n "$ETHDEV_TIMEOUT" ] || ETHDEV_TIMEOUT=15
+	echo "Using timeout of $ETHDEV_TIMEOUT seconds for network configuration."
+
+	# this is tricky (and ugly) because ipconfig sometimes just hangs/runs into
+	# an endless loop; iff execution fails give it two further tries, that's
+	# why we use '$devlist $devlist $devlist' for the other for loop
+	for dev in $devlist $devlist $devlist ; do
+		echo "Executing ipconfig -t $ETHDEV_TIMEOUT $dev"
+		ipconfig -t "$ETHDEV_TIMEOUT" $dev | tee -a /netboot.config &
+		jobid=$!
+		sleep "$ETHDEV_TIMEOUT" ; sleep 1
+		if [ -r /proc/"$jobid"/status ] ; then
+			echo "Killing job $jobid for device $dev as ipconfig ran into recursion..."
+			kill -9 $jobid
+		fi
+
+		# if configuration of device worked we should have an assigned
+		# IP address, iff so let's use the according as $DEVICE for later usage
+		# simple and primitive approach which seems to work fine
+		if ifconfig $dev | grep -q 'inet.*addr:' ; then
+			export DEVICE="$dev"
+			break
+		fi
+	done
 
 	# source relevant ipconfig output
 	OLDHOSTNAME=${HOSTNAME}
@@ -782,7 +825,8 @@ do_netmount ()
 	export HOSTNAME
 
 	# Check if we have a network device at all
-	if ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
+	if ! ls /sys/class/net/"$DEVICE" > /dev/null 2>&1 && \
+	   ! ls /sys/class/net/eth0 > /dev/null 2>&1 && \
 	   ! ls /sys/class/net/wlan0 > /dev/null 2>&1 && \
 	   ! ls /sys/class/net/ath0 > /dev/null 2>&1 && \
 	   ! ls /sys/class/net/ra0 > /dev/null 2>&1
@@ -996,7 +1040,7 @@ find_snap ()
 	if [ "${PERSISTENT}" != "nofiles" ]
 	then
 		# search for image files
-		snapdata=$(find_files "${snap_label}.squashfs ${snap_label}.cpio.gz ${snap_label}.ext2 ${snap_label}.ext3 ${snap_label}.ext4 ${snap_label}.jffs2")
+		snapdata=$(find_files "${PERSISTENT_PATH}${snap_label}.squashfs ${PERSISTENT_PATH}${snap_label}.cpio.gz ${PERSISTENT_PATH}${snap_label}.ext2 ${PERSISTENT_PATH}${snap_label}.ext3 ${PERSISTENT_PATH}${snap_label}.ext4 ${PERSISTENT_PATH}${snap_label}.jffs2")
 	fi
 
 	if [ -z "${snapdata}" ]
@@ -1094,7 +1138,25 @@ setup_unionfs ()
 	image_directory="${1}"
 	rootmnt="${2}"
         addimage_directory="${3}"
-	modprobe -q -b ${UNIONTYPE}
+
+	case ${UNIONTYPE} in
+		aufs|unionfs)
+			modprobe -q -b ${UNIONTYPE}
+
+			if ! cut -f2 /proc/filesystems | grep -q "^${UNIONTYPE}\$" && [ -x /bin/unionfs-fuse ]
+			then
+				echo "${UNIONTYPE} not available, falling back to unionfs-fuse."
+				echo "This might be really slow."
+
+				UNIONTYPE="unionfs-fuse"
+			fi
+			;;
+	esac
+
+	if [ "${UNIONTYPE}" = unionfs-fuse ]
+	then
+		modprobe fuse
+	fi
 
 	# run-init can't deal with images in a subdir, but we're going to
 	# move all of these away before it runs anyway.  No, we're not,
@@ -1109,7 +1171,11 @@ setup_unionfs ()
 
 	if [ "${UNIONTYPE}" = "aufs" ]
 	then
-		roopt="rr,xino=/tmp/aufs.xino"
+		roopt="rr"
+		noxino_opt="noxino,"
+	elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
+	then
+		roopt="RO"
 	else
 		roopt="ro"
 	fi
@@ -1232,16 +1298,8 @@ setup_unionfs ()
 				modprobe -q -b ${module}
 			done
 
-			if [ -x /sbin/udevadm ]
-			then
-				# lenny
-				udevadm trigger
-				udevadm settle
-			else
-				# etch
-				udevtrigger
-				udevsettle
-			fi
+			udevadm trigger
+			udevadm settle
 
 			# For some reason, udevsettle does not block in this scenario,
 			# so we sleep for a little while.
@@ -1357,16 +1415,27 @@ setup_unionfs ()
 
 		for dir in ${cow_dirs}; do
 			mkdir -p /cow${dir}
-			mount -t ${UNIONTYPE} \
-				-o rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro \
-				${UNIONTYPE} "${rootmnt}${dir}" || \
-				panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option \
-					rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro"
+
+			case "${UNIONTYPE}" in
+				unionfs-fuse)
+					(ulimit -n 16384; unionfs-fuse -o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid /cow=RW:${exposedrootfs}${dir} "${rootmnt}${dir}" || panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option cow,noinitgroups,default_permissions,allow_other,use_ino,suid=/cow=RW:${exposedrootfs}${dir}")
+					;;
+
+				*)
+					mount -t ${UNIONTYPE} -o rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro ${UNIONTYPE} "${rootmnt}${dir}" || panic "mount ${UNIONTYPE} on ${rootmnt}${dir} failed with option rw,noatime,dirs=/cow${dir}=rw:${exposedrootfs}${dir}=ro"
+					;;
+			esac
 		done
 	else
-		mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} \
-			${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on \
-			${rootmnt} failed with option noatime,dirs=/cow=rw:${rofsstring}"
+		case "${UNIONTYPE}" in
+			unionfs-fuse)
+				(ulimit -n 16384; unionfs-fuse -o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid /cow=RW:${rofsstring} "${rootmnt}" || panic "mount ${UNIONTYPE} on ${rootmnt} failed with option cow,noinitgroups,default_permissions,allow_other,use_ino,suid=/cow:RW:${rofsstring}")
+				;;
+
+			*)
+				mount -t ${UNIONTYPE} -o noatime,${noxino_opt}dirs=/cow=rw:${rofsstring} ${UNIONTYPE} "${rootmnt}" || panic "mount ${UNIONTYPE} on ${rootmnt} failed with option noatime,${noxino_opt}dirs=/cow=rw:${rofsstring}"
+				;;
+		esac
 	fi
 
 	# Correct the permissions of /:
@@ -1409,7 +1478,15 @@ setup_unionfs ()
 					;;
 
 				*)
-					mount -o move "${d}" "${rootmnt}/live/${d##*/}"
+					case "${UNIONTYPE}" in
+						unionfs-fuse)
+							mount -o bind "${d}" "${rootmnt}/live/${d##*/}"
+							;;
+
+						*)
+							mount -o move "${d}" "${rootmnt}/live/${d##*/}"
+							;;
+					esac
 					;;
 			esac
 		done
@@ -1730,12 +1807,24 @@ mountroot ()
 
 	log_end_msg
 
+	# unionfs-fuse needs /dev to be bind-mounted for the duration of
+	# live-bottom; udev's init script will take care of things after that
+	if [ "${UNIONTYPE}" = unionfs-fuse ]
+	then
+		mount -n -o bind /dev "${rootmnt}/dev"
+	fi
+
 	maybe_break live-bottom
 	log_begin_msg "Running /scripts/live-bottom\n"
 
 	run_scripts /scripts/live-bottom
 	log_end_msg
 
+	if [ "${UNIONFS}" = unionfs-fuse ]
+	then
+		umount "${rootmnt}/dev"
+	fi
+
 	exec 1>&6 6>&-
 	exec 2>&7 7>&-
 	kill ${tailpid}