X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=a6da175dd5928225e4d3fc3128574aa853fabfd8;hb=516cef1024f401735992bba54ab4922b767b6a6a;hp=5e080f9eb8680490e8403550a7be55fc92f48845;hpb=aa2f9a8dff5be9a2a41cc7af053821d5afab0478;p=live-boot-grml.git

diff --git a/scripts/live b/scripts/live
index 5e080f9..a6da175 100755
--- a/scripts/live
+++ b/scripts/live
@@ -11,8 +11,6 @@ mountpoint="/live/image"
 alt_mountpoint="/media"
 LIVE_MEDIA_PATH="live"
 
-USERNAME="user"
-USERFULLNAME="Live user"
 HOSTNAME="host"
 
 mkdir -p "${mountpoint}"
@@ -801,7 +799,7 @@ try_snap ()
 		return 1
 	fi
 
-	if [ -z ${PERSISTENT_READONLY} ]
+	if [ -z ${PERSISTENCE_READONLY} ]
 	then
 		echo "export ${snap_type}SNAP=${snap_relpath}:${snapdev}:${snapfile}" >> snapshot.conf # for resync on reboot/halt
 	fi
@@ -954,10 +952,14 @@ setup_unionfs ()
 		log_end_msg
 	fi
 
-	mkdir -p /cow
+	# tmpfs file systems
+	touch /etc/fstab
+	mkdir -p /live
+	mount -t tmpfs tmpfs /live
+	mkdir -p /live/overlay
 
-	# Looking for persistent devices or files
-	if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
+	# Looking for persistence devices or files
+	if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ]
 	then
 
 		if [ -z "${QUICKUSBMODULES}" ]
@@ -987,7 +989,7 @@ setup_unionfs ()
 			done
 		fi
 
-		case "${PERSISTENT_MEDIA}" in
+		case "${PERSISTENCE_MEDIA}" in
 			removable)
 				whitelistdev="$(removable_dev)"
 				;;
@@ -999,25 +1001,24 @@ setup_unionfs ()
 				;;
 		esac
 
-		if echo ${PERSISTENT_METHOD} | grep -qe "\<overlay\>"
+		if is_in_comma_sep_list overlay ${PERSISTENCE_METHOD}
 		then
-			overlays="${root_overlay_label} ${custom_overlay_label}"
+			overlays="${old_root_overlay_label} ${old_home_overlay_label} ${custom_overlay_label}"
 		fi
 
-		if echo ${PERSISTENT_METHOD} | grep -qe "\<snapshot\>"
+		if is_in_comma_sep_list snapshot ${PERSISTENCE_METHOD}
 		then
 			snapshots="${root_snapshot_label} ${home_snapshot_label}"
 		fi
 
 		local root_snapdata=""
-		local home_snapshot_label=""
-		local root_overlay_label=""
+		local home_snapdata=""
 		local overlay_devices=""
-		for media in $(find_persistent_media "${overlays}" "${snapshots}" "${blacklistdev}" "${whitelistdev}")
+		for media in $(find_persistence_media "${overlays}" "${snapshots}" "${whitelistdev}")
 		do
 			media="$(echo ${media} | tr ":" " ")"
 			case ${media} in
-				${root_snapshot_label}=*)
+				${root_snapshot_label}=*|${old_root_snapshot_label}=*)
 					if [ -z "${root_snapdata}" ]
 					then
 						root_snapdata="${media#*=}"
@@ -1032,12 +1033,15 @@ setup_unionfs ()
 						home_snapdata="${media#*=}"
 					fi
 					;;
-				${root_overlay_label}=*)
-					if [ -z "${root_overlay_device}" ]
-					then
-						device="${media#*=}"
-						root_overlay_device="${device}"
-					fi
+				${old_root_overlay_label}=*)
+					device="${media#*=}"
+					fix_backwards_compatibility ${device} / union
+					overlay_devices="${overlay_devices} ${device}"
+					;;
+				${old_home_overlay_label}=*)
+					device="${media#*=}"
+					fix_backwards_compatibility ${device} /home bind
+					overlay_devices="${overlay_devices} ${device}"
 					;;
 				${custom_overlay_label}=*)
 					device="${media#*=}"
@@ -1045,27 +1049,7 @@ setup_unionfs ()
 					;;
 			 esac
 		done
-
-		if [ -b "${root_overlay_device}" ]
-		then
-			PERSISTENCE_IS_ON="1"
-			export PERSISTENCE_IS_ON
-
-			cowdevice=${root_overlay_device}
-			cow_fstype=$(get_fstype "${root_overlay_device}")
-			if [ -z "${PERSISTENT_READONLY}" ]
-			then
-				cow_mountopt="rw,noatime"
-			else
-				cow_mountopt="ro,noatime"
-			fi
-
-			if [ "${FORCEPERSISTENTFSCK}" = "Yes" ]
-			then
-				fsck -y ${cowdevice}
-			fi
-		fi
-	elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENT}" ]
+	elif [ -n "${NFS_COW}" ] && [ -z "${NOPERSISTENCE}" ]
 	then
 		# check if there are any nfs options
 		if echo ${NFS_COW}|grep -q ','
@@ -1077,7 +1061,7 @@ setup_unionfs ()
 			nfs_cow=${NFS_COW}
 		fi
 
-		if [ -n "${PERSISTENT_READONLY}" ]
+		if [ -n "${PERSISTENCE_READONLY}" ]
 		then
 			nfs_cow_opts="${nfs_cow_opts},nocto,ro"
 		fi
@@ -1101,13 +1085,13 @@ setup_unionfs ()
 
 	if [ "${UNIONTYPE}" != "unionmount" ]
 	then
-		if [ -n "${PERSISTENT_READONLY}" ]
+		if [ -n "${PERSISTENCE_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ]
 		then
-			mount -t tmpfs -o rw,noatime,mode=755 tmpfs "/cow"
-			root_backing="${rootmnt}/live/persistent/$(basename ${cowdevice})-root"
+			mount -t tmpfs -o rw,noatime,mode=755 tmpfs "/live/overlay"
+			root_backing="/live/persistence/$(basename ${cowdevice})-root"
 			mkdir -p ${root_backing}
 		else
-			root_backing="/cow"
+			root_backing="/live/overlay"
 		fi
 
 		if [ "${cow_fstype}" = "nfs" ]
@@ -1124,15 +1108,15 @@ setup_unionfs ()
 
 	rofscount=$(echo ${rofslist} |wc -w)
 
-	# XXX: we now ensure that there can only be one read-only filesystem. Should this be inside the EXPOSED_ROOT if?
-	if [ ${rofscount} -ne 1 ]
-	then
-		panic "only one RO file system supported with exposedroot: ${rofslist}"
-	fi
 	rofs=${rofslist%% }
 
 	if [ -n "${EXPOSED_ROOT}" ]
 	then
+		if [ ${rofscount} -ne 1 ]
+		then
+			panic "only one RO file system supported with exposedroot: ${rofslist}"
+		fi
+
 		mount --bind ${rofs} ${rootmnt} || \
 			panic "bind mount of ${rofs} failed"
 
@@ -1157,16 +1141,15 @@ setup_unionfs ()
 		mkdir -p ${unionmountpoint}
 		if [ "${UNIONTYPE}" = "unionmount" ]
 		then
-			# FIXME: handle PERSISTENT_READONLY
+			# FIXME: handle PERSISTENCE_READONLY
 			unionmountopts="-t ${cow_fstype} -o noatime,union,${cow_mountopt} ${cowdevice}"
 			mount_full $unionmountopts "${unionmountpoint}"
 		else
-			cow_dir="/cow${dir}"
+			cow_dir="/live/overlay${dir}"
 			rofs_dir="${rofs}${dir}"
 			mkdir -p ${cow_dir}
-			if [ -n "${PERSISTENT_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ]
+			if [ -n "${PERSISTENCE_READONLY}" ] && [ "${cowdevice}" != "tmpfs" ]
 			then
-				#mount -t tmpfs -o rw,noatime,mode=755 tmpfs "${cow_dir}"
 				do_union ${unionmountpoint} ${cow_dir} ${root_backing} ${rofs_dir}
 			else
 				do_union ${unionmountpoint} ${cow_dir} ${rofs_dir}
@@ -1177,20 +1160,15 @@ setup_unionfs ()
 	# Correct the permissions of /:
 	chmod 0755 "${rootmnt}"
 
-	# tmpfs file systems
-	touch /etc/fstab
-	mkdir -p "${rootmnt}/live"
-	mount -t tmpfs tmpfs ${rootmnt}/live
-
 	live_rofs_list=""
 	# SHOWMOUNTS is necessary for custom mounts with the union option
 	# Since we may want to do custom mounts in user-space it's best to always enable SHOWMOUNTS
-	if true #[ -n "${SHOWMOUNTS}" ] || ( [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ] 1)
+	if true #[ -n "${SHOWMOUNTS}" ] || ( [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ] 1)
 	then
 		# XXX: is the for loop really necessary? rofslist can only contain one item (see above XXX about EXPOSEDROOT) and this is also assumed elsewhere above (see use of $rofs above).
 		for d in ${rofslist}
 		do
-			live_rofs="${rootmnt}/live/rofs/${d##*/}"
+			live_rofs="/live/rofs/${d##*/}"
 			live_rofs_list="${live_rofs_list} ${live_rofs}"
 			mkdir -p "${live_rofs}"
 			case d in
@@ -1211,30 +1189,44 @@ setup_unionfs ()
 		done
 	fi
 
-	# Adding custom persistent
-	if [ -n "${PERSISTENT}" ] && [ -z "${NOPERSISTENT}" ]
+	# Adding custom persistence
+	if [ -n "${PERSISTENCE}" ] && [ -z "${NOPERSISTENCE}" ]
 	then
-		local custom_mounts="/custom_mounts.list"
+		local custom_mounts="/tmp/custom_mounts.list"
 		rm -rf ${custom_mounts} 2> /dev/null
 
 		# Gather information about custom mounts from devies detected as overlays
-		get_custom_mounts ${overlay_devices} ${custom_mounts} ${rootmnt}
+		get_custom_mounts ${custom_mounts} ${overlay_devices}
 
-		[ "${DEBUG}" = "Yes" ] && cp ${custom_mounts} "${rootmnt}/live/persistent"
+		[ -n "${DEBUG}" ] && cp ${custom_mounts} "/live/persistence"
 
 		# Now we do the actual mounting (and symlinking)
-		do_custom_mounts ${custom_mounts} ${rootmnt}
+		local used_overlays=""
+		used_overlays=$(activate_custom_mounts ${custom_mounts})
 		rm ${custom_mounts}
 
+		# Close unused overlays (e.g. due to missing $persistence_list)
+		for overlay in ${overlay_devices}
+		do
+			if echo ${used_overlays} | grep -qve "^\(.* \)\?${device}\( .*\)\?$"
+			then
+				close_persistence_media ${overlay}
+			fi
+		done
+
 		# Look for other snapshots to copy in
-		try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
+		[ -n "${root_snapdata}" ] && try_snap "${root_snapdata}" "${rootmnt}" "ROOT"
 		# This second type should be removed when snapshot grow smarter
-		try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
+		[ -n "${home_snapdata}" ] && try_snap "${home_snapdata}" "${rootmnt}" "HOME" "/home"
 	fi
 
-	# shows cow fs on /cow for use by live-snapshot
-	mkdir -p "${rootmnt}/live/cow"
-	mount -o move /cow "${rootmnt}/live/cow" >/dev/null 2>&1 || mount -o bind /cow "${rootmnt}/live/cow" || log_warning_msg "Unable to move or bind /cow to ${rootmnt}/live/cow"
+	mkdir -p "${rootmnt}/live"
+	mount -o move /live "${rootmnt}/live" >/dev/null 2>&1 || mount -o bind /live "${rootmnt}/live" || log_warning_msg "Unable to move or bind /live to ${rootmnt}/live"
+
+	# shows cow fs on /overlay for use by live-snapshot
+	mkdir -p "${rootmnt}/live/overlay"
+	mount -o move /live/overlay "${rootmnt}/live/overlay" >/dev/null 2>&1 || mount -o bind /overlay "${rootmnt}/live/overlay" || log_warning_msg "Unable to move or bind /overlay to ${rootmnt}/live/overlay"
+
 }
 
 check_dev ()
@@ -1263,18 +1255,18 @@ check_dev ()
 
 		if [ "$ISO_DEVICE" = "/" ]
 		then
-			echo "Warning: device for bootoption isofrom= ($FROMISO) not found.">>/live-boot.log
+			echo "Warning: device for bootoption fromiso= ($FROMISO) not found.">>/boot.log
 		else
 			fs_type=$(get_fstype "${ISO_DEVICE}")
 			if is_supported_fs ${fs_type}
 			then
-				mkdir /isofrom
-				mount -t $fs_type "$ISO_DEVICE" /isofrom
+				mkdir /live/fromiso
+				mount -t $fs_type "$ISO_DEVICE" /live/fromiso
 				ISO_NAME="$(echo $FROMISO | sed "s|$ISO_DEVICE||")"
-				loopdevname=$(setup_loop "/isofrom/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
+				loopdevname=$(setup_loop "/live/fromiso/${ISO_NAME}" "loop" "/sys/block/loop*" "" '')
 				devname="${loopdevname}"
 			else
-				echo "Warning: unable to mount $ISO_DEVICE." >>/live-boot.log
+				echo "Warning: unable to mount $ISO_DEVICE." >>/boot.log
 			fi
 		fi
 	fi
@@ -1342,6 +1334,21 @@ check_dev ()
 		mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
 		[ -n "$devuid" ] && echo "$devuid" >> $tried
 
+		if [ -n "${FINDISO}" ]
+		then
+			if [ -f ${mountpoint}/${FINDISO} ]
+			then
+				umount ${mountpoint}
+				mkdir -p /live/findiso
+				mount -t ${fstype} -o ro,noatime "${devname}" /live/findiso
+				loopdevname=$(setup_loop "/live/findiso/${FINDISO}" "loop" "/sys/block/loop*" 0 "")
+				devname="${loopdevname}"
+				mount -t iso9660 -o ro,noatime "${devname}" ${mountpoint}
+			else
+				umount ${mountpoint}
+			fi
+		fi
+
 		if is_live_path ${mountpoint} && \
 			([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
 		then
@@ -1492,9 +1499,9 @@ mountroot ()
 
 	exec 6>&1
 	exec 7>&2
-	exec > live-boot.log
+	exec > boot.log
 	exec 2>&1
-	tail -f live-boot.log >&7 &
+	tail -f boot.log >&7 &
 	tailpid="${!}"
 
 	# Ensure 'panic' function is overridden
@@ -1588,8 +1595,14 @@ mountroot ()
 	# rid of it when running from RAM
 	if [ -n "$FROMISO" ] && [ "${TORAM}" ]
 	then
-	  losetup -d /dev/loop0
-	  grep -q /isofrom /proc/mounts && umount /isofrom
+		losetup -d /dev/loop0
+
+		if is_mountpoint /live/fromiso
+		then
+			umount /live/fromiso
+			rmdir --ignore-fail-on-non-empty /live/fromiso \
+				>/dev/null 2>&1 || true
+		fi
 	fi
 
 	if [ -n "${MODULETORAMFILE}" ] || [ -n "${PLAIN_ROOT}" ]
@@ -1628,6 +1641,28 @@ mountroot ()
 	# when booting FAI, this simple workaround solves it
 	ls /root/* >/dev/null 2>&1
 
+	# Move findiso directory to the new root filesystem so that programs there can get at it.
+	if [ -d /live/findiso ] && [ ! -d /root/live/findiso ]
+	then
+		mkdir -p /root/live/findiso
+		mount -n --move /live/findiso /root/live/findiso
+	fi
+
+	# if we do not unmount the ISO we can't run "fsck /dev/ice" later on
+	# because the mountpoint is left behind in /proc/mounts, so let's get
+	# rid of it when running from RAM
+	if [ -n "$FINDISO" ] && [ "${TORAM}" ]
+	then
+		losetup -d /dev/loop0
+
+		if is_mountpoint /root/live/findiso
+		then
+			umount /root/live/findiso
+			rmdir --ignore-fail-on-non-empty /root/live/findiso \
+				>/dev/null 2>&1 || true
+		fi
+	fi
+
 	# copy snapshot configuration if exists
 	if [ -f snapshot.conf ]
 	then
@@ -1661,5 +1696,5 @@ mountroot ()
 	exec 1>&6 6>&-
 	exec 2>&7 7>&-
 	kill ${tailpid}
-	[ -w "${rootmnt}/var/log/" ] && cp live-boot.log "${rootmnt}/var/log/" 2>/dev/null
+	[ -w "${rootmnt}/var/log/" ] && mkdir -p /var/log/live && cp boot.log "${rootmnt}/var/log/live" 2>/dev/null
 }