X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=08d6d7495694053cae2ea43f08429b44c7eeb47f;hb=13bb5656427cd5ad5475ceb48fe973c2f3b41f8c;hp=e80c47091a09dbb0060463f446e50a6c295b0f02;hpb=baa35e3dbde1d68bedca73fa03425d0a7d8b374c;p=live-boot-grml.git

diff --git a/scripts/live b/scripts/live
index e80c470..08d6d74 100755
--- a/scripts/live
+++ b/scripts/live
@@ -1237,17 +1237,6 @@ setup_unionfs ()
 	# Let's just mount the read-only file systems first
 	rofslist=""
 
-	if [ "${UNIONTYPE}" = "aufs" ]
-	then
-		roopt="rr+wh"
-		noxino_opt="noxino,"
-	elif [ "${UNIONTYPE}" = "unionfs-fuse" ]
-	then
-		roopt="RO"
-	else
-		roopt="ro"
-	fi
-
 	if [ -z "${PLAIN_ROOT}" ]
 	then
 		# Read image names from ${MODULE}.module if it exists
@@ -1496,21 +1485,21 @@ setup_unionfs ()
 	then
 		if [ -n "${PERSISTENT_READONLY}" ]
 		then
-			persistent_root="/$(basename ${cowdevice})-backing"
-			mkdir -p ${persistent_root}
+			root_backing="/${rootmnt}/live/persistent/$(basename ${cowdevice})-root"
+			mkdir -p ${root_backing}
 		else
-			persistent_root="/cow"
+			root_backing="/cow"
 		fi
 
 		if [ "${cow_fstype}" = "nfs" ]
 		then
 			log_begin_msg \
-				"Trying nfsmount ${nfs_cow_opts} ${cowdevice} ${persistent_root}"
-			nfsmount ${nfs_cow_opts} ${cowdevice} ${persistent_root} || \
-				panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on ${persistent_root}"
+				"Trying nfsmount ${nfs_cow_opts} ${cowdevice} ${root_backing}"
+			nfsmount ${nfs_cow_opts} ${cowdevice} ${root_backing} || \
+				panic "Can not mount ${cowdevice} (n: ${cow_fstype}) on ${root_backing}"
 		else
-			mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} ${persistent_root} || \
-				panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on ${persistent_root}"
+			mount -t ${cow_fstype} -o ${cow_mountopt} ${cowdevice} ${root_backing} || \
+				panic "Can not mount ${cowdevice} (o: ${cow_fstype}) on ${root_backing}"
 		fi
 	fi
 
@@ -1547,44 +1536,18 @@ setup_unionfs ()
 	unionmountpoint=""
 
 	for dir in ${cow_dirs}; do
-		mkdir -p /cow${dir}
-
-		unionmountpoint="${rootmnt}${dir}"
 		unionrw="/cow${dir}"
 		unionro="${rofs}${dir}"
-		# We don't handle spaces and other junk gracefully here, hopefully not needed.
-		case "${UNIONTYPE}" in
-			unionfs-fuse)
-				unionmountopts="-o cow -o noinitgroups -o default_permissions -o allow_other -o use_ino -o suid"
-				unionmountopts="${unionmountopts} ${unionrw}=RW:${unionro}=RO"
-				( sysctl -w fs.file-max=391524 ; ulimit -HSn 16384
-				unionfs-fuse ${unionmountopts} "${unionmountpoint}" ) && \
-				( mkdir -p /run/sendsigs.omit.d
-				pidof unionfs-fuse >> /run/sendsigs.omit.d/unionfs-fuse || true )
-				;;
-
-			unionmount)
-				unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
-				mount_full $unionmountopts "${unionmountpoint}"
-				;;
-
-			overlayfs)
-				unionmountopts="-o noatime,${noxino_opt},lowerdir=${unionro},upperdir=${unionrw}"
-				mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
-				;;
-
-			*)
-				if [ -n "${PERSISTENT_READONLY}" ]
-				then
-					mount -t tmpfs -o rw,noatime,mode=755 tmpfs "${unionrw}"
-					unionmountopts="-o noatime,${noxino_opt}dirs=${unionrw}=rw:${persistent_root}=${roopt}:${unionro}=${roopt}"
-				else
-					unionmountopts="-o noatime,${noxino_opt}dirs=${unionrw}=rw:${unionro}=${roopt}"
-				fi
-				mount -t ${UNIONTYPE} ${unionmountopts} ${UNIONTYPE} "${unionmountpoint}"
-				;;
-		esac || \
-			panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
+		unionmountpoint="${rootmnt}${dir}"
+		mkdir -p ${unionrw}
+		if [ "${UNIONTYPE}" = "unionmount" ]
+		then
+			# FIXME: handle PERSISTENT_READONLY
+			unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
+			mount_full $unionmountopts "${unionmountpoint}"
+		else
+			do_union ${root_backing} ${unionrw} ${unionro} ${unionmountpoint}
+		fi || panic "mount ${UNIONTYPE} on ${unionmountpoint} failed with option ${unionmountopts}"
 	done
 
 	# Correct the permissions of /:
@@ -1663,7 +1626,7 @@ setup_unionfs ()
 							;;
 						*)
 							log_warning_msg "Skipping custom mount with unkown option: ${opt}"
-							continue
+							continue 2
 							;;
 					esac
 				done
@@ -1695,16 +1658,28 @@ setup_unionfs ()
 		# that we won't hide a previous mount. We also  ignore
 		# duplicate destinations in a more or less arbitrary way.
 		[ -e "${bindings}" ] && sort -k2 -sbu ${bindings} >> ${custom_mounts}
+		rm -f ${bindings}
 
 		# After all mounts are considered we add symlinks so they
 		# won't be hidden by some mount.
 		[ -e "${links}" ] && sort -k2 -sbu ${links} >> ${custom_mounts}
+		rm -f ${links}
 
 		[ "${DEBUG}" = "Yes" ] && cp ${custom_mounts} ${persistent_backing}
 
 		# Now we do the actual mounting (and symlinking)
 		while read source dest options	# < ${custom_mounts}
 		do
+			local opt_linkfiles=""
+			for opt in $(echo ${options} | tr ',' ' ');
+			do
+				 case "${opt}" in
+					"linkfiles")
+						opt_linkfiles="yes"
+						;;
+				esac
+			done
+
 			if mountpoint -q "${dest}";
 			then
 				log_warning_msg "Skipping custom mount ${source} on ${dest}: destination is already a mount point"
@@ -1743,7 +1718,7 @@ setup_unionfs ()
 			# dealing with /etc or other system dir.
 			if [ ! -d "${source}" ]
 			then
-				if [ -n "${PERSISTENT_READONLY}" ] || echo ${options} | grep -qe "\<linkfiles\>"
+				if [ -n "${PERSISTENT_READONLY}" ] || [ -n "${opt_linkfiles}" ]
 				then
 					continue
 				fi
@@ -1754,7 +1729,7 @@ setup_unionfs ()
 
 			if [ -z "${PERSISTENT_READONLY}" ]
 			then
-				if echo ${options} | grep -qe "\<linkfiles\>";
+				if [ -n "${opt_linkfiles}" ]
 				then
 					links_source="${source}"
 					links_dest="${dest}"
@@ -1762,7 +1737,7 @@ setup_unionfs ()
 					mount --bind "${source}" "${dest}"
 				fi
 			else
-				if echo ${options} | grep -qe "\<linkfiles\>";
+				if [ -n "${opt_linkfiles}" ]
 				then
 					links_dest="${dest}"
 					dest="$(mktemp -d ${persistent_backing}/links_source-XXXXXX)"
@@ -1771,10 +1746,10 @@ setup_unionfs ()
 				unionrw="$(echo ${dest} | sed -e "s|${rootmnt}|/cow/|")"
 				mkdir -p ${unionrw}
 				unionmountopts="noatime,${noxino_opt}dirs=${unionrw}=rw:${source}=${roopt}"
-				mount -t "${UNIONTYPE}" -o "${unionmountopts}" "${UNIONTYPE}" "${dest}"
+				do_union ${root_backing} ${unionrw} ${source} ${dest}
 			fi
 
-			if echo $options | grep -qe "\<linkfiles\>";
+			if [ -n "${opt_linkfiles}" ]
 			then
 				link_files "${links_source}" "${links_dest}" "${rootmnt}"
 			fi