X-Git-Url: http://git.grml.org/?a=blobdiff_plain;f=scripts%2Flive;h=f204a1ee7970ee75da509709bad9e16d4f34110a;hb=9431b744fbb49b0b3d52d205126b2cbe6a7980ae;hp=b1157c57d030b1722b83fa10c7e52df6e7a3a77b;hpb=6a4d65ec300345fa19ecddafcabec9b83372a33c;p=live-boot-grml.git

diff --git a/scripts/live b/scripts/live
index b1157c5..f204a1e 100755
--- a/scripts/live
+++ b/scripts/live
@@ -79,6 +79,11 @@ Arguments ()
 				export USERFULLNAME LIVECONF
 				;;
 
+			ignore_uuid)
+				IGNORE_UUID="Yes"
+				export IGNORE_UUID
+				;;
+
 			ip=*)
 				STATICIP="${ARGUMENT#ip=}"
 
@@ -434,6 +439,31 @@ is_live_path ()
 	return 1
 }
 
+matches_uuid ()
+{
+	if [ "${IGNORE_UUID}" ] || [ ! -e /conf/uuid.conf ]
+	then
+		return 0
+	fi
+
+	path="${1}"
+	uuid="$(cat /conf/uuid.conf)"
+
+	for try_uuid_file in "${mountpoint}/.disk/casper-uuid"*
+	do
+		[ -e "${try_uuid_file}" ] || continue
+
+		try_uuid="$(cat "${try_uuid_file}")"
+
+		if [ "${uuid}" = "${try_uuid}" ]
+		then
+			return 0
+		fi
+	done
+
+	return 1
+}
+
 get_backing_device ()
 {
 	case "${1}" in
@@ -732,7 +762,7 @@ do_snap_copy ()
 		if [ -n "${fstype}" ]
 		then
 			# Copying stuff...
-			mount -t "${fstype}" -o ro,noatime "${fromdev}" "${tomount}"
+			mount -t "${fstype}" -o ro,noatime,nodiratime "${fromdev}" "${tomount}"
 			cp -a "${tomount}"/* ${todir}
 			umount "${tomount}"
 		else
@@ -908,7 +938,7 @@ setup_unionfs ()
 
 			mkdir -p "${croot}/${imagename}"
 			echo "debug: Can not mount backdev ${backdev} (image = ${image}) on croot/imagename ${croot}/${imagename}"
-			mount -t "${fstype}" -o ro,noatime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
+			mount -t "${fstype}" -o ro,noatime,nodiratime "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
 		fi
 	done
 
@@ -932,9 +962,9 @@ setup_unionfs ()
 		fi
 	fi
 
-	mount ${cowdevice} -t ${cow_fstype} -o rw,noatime /cow || panic "Can not mount ${cowdevice} on /cow"
+	mount ${cowdevice} -t ${cow_fstype} -o rw,noatime,nodiratime /cow || panic "Can not mount ${cowdevice} on /cow"
 
-	mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} ${UNIONTYPE} "${rootmnt}" || panic "${UNIONTYPE} mount failed"
+	mount -t ${UNIONTYPE} -o noatime,nodiratime,dirs=/cow=rw:${rofsstring} ${UNIONTYPE} "${rootmnt}" || panic "${UNIONTYPE} mount failed"
 
 	# Adding other custom mounts
 	if [ -n "${PERSISTENT}" ]
@@ -945,7 +975,7 @@ setup_unionfs ()
 
 		if [ -b "${homecow}" ]
 		then
-			mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${rootmnt}/home"
+			mount -t $(get_fstype "${homecow}") -o rw,noatime,nodiratime "${homecow}" "${rootmnt}/home"
 			export HOMEMOUNTED=1 # used to proper calculate free space in do_snap_copy()
 		else
 			[ "${quiet}" != "y" ] && log_warning_msg "Unable to find the persistent home medium"
@@ -983,6 +1013,7 @@ check_dev ()
 {
 	sysdev="${1}"
 	devname="${2}"
+	skip_uuid_check="${3}"
 
 	if [ -z "${devname}" ]
 	then
@@ -999,9 +1030,11 @@ check_dev ()
 
 	if is_supported_fs ${fstype}
 	then
-		mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
+		mount -t ${fstype} -o ro,noatime,nodiratime "${devname}" ${mountpoint} || continue
 
 		if is_live_path ${mountpoint}
+		if is_live_path $mountpoint && \
+			([ "${skip_uuid_check}" ] || matches_uuid ${mountpoint})
 		then
 			echo ${mountpoint}
 			return 0
@@ -1025,7 +1058,7 @@ find_livefs ()
 	# first look at the one specified in the command line
 	if [ ! -z "${LIVE_MEDIA}" ]
 	then
-		if check_dev "null" "${LIVE_MEDIA}"
+		if check_dev "null" "${LIVE_MEDIA}" "skip_uuid_check"
 		then
 			return 0
 		fi