Merging casper 1.106.

docs/ChangeLog.casper

@@ -1,3 +1,15 @@
+casper (1.106) gutsy; urgency=low
+
+  * Support preseed/early_command; code supplied here will be run using 'sh
+    -c' from casper-bottom, and can chroot to /root if needed (LP: #144845).
+  * Make sure we don't accidentally continue to boot if casper-md5check
+    fails (LP: #82856).
+  * Clear out debconf database backup files after preseeding to save memory
+    (LP: #43706).
+  * Mount everything as noatime to avoid unnecessary metadata writes.
+
+ -- Colin Watson <cjwatson@ubuntu.com>  Fri, 28 Sep 2007 15:27:52 +0100
+
 casper (1.105) gutsy; urgency=low
 
   * scripts/casper-bottom/36disable_trackerd: Disable trackerd in the live

scripts/live

@@ -727,7 +727,7 @@ do_snap_copy ()
 		if [ -n "${fstype}" ]
 		then
 			# Copying stuff...
-			mount -t "${fstype}" -o ro "${fromdev}" "${tomount}"
+			mount -t "${fstype}" -o ro,noatime "${fromdev}" "${tomount}"
 			cp -a "${tomount}"/* ${todir}
 			umount "${tomount}"
 		else
@@ -903,7 +903,7 @@ setup_unionfs ()
 
 			mkdir -p "${croot}/${imagename}"
 			echo "debug: Can not mount backdev ${backdev} (image = ${image}) on croot/imagename ${croot}/${imagename}"
-			mount -t "${fstype}" -o ro "${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 "${backdev}" "${croot}/${imagename}" || panic "Can not mount ${backdev} (${image}) on ${croot}/${imagename}" && rofsstring="${croot}/${imagename}=${roopt}:${rofsstring}" && rofslist="${croot}/${imagename} ${rofslist}"
 		fi
 	done
 
@@ -927,9 +927,9 @@ setup_unionfs ()
 		fi
 	fi
 
-	mount ${cowdevice} -t ${cow_fstype} -o rw /cow || panic "Can not mount ${cowdevice} on /cow"
+	mount ${cowdevice} -t ${cow_fstype} -o rw,noatime /cow || panic "Can not mount ${cowdevice} on /cow"
 
-	mount -t ${UNIONTYPE} -o dirs=/cow=rw:${rofsstring} ${UNIONTYPE} "${rootmnt}" || panic "${UNIONTYPE} mount failed"
+	mount -t ${UNIONTYPE} -o noatime,dirs=/cow=rw:${rofsstring} ${UNIONTYPE} "${rootmnt}" || panic "${UNIONTYPE} mount failed"
 
 	# Adding other custom mounts
 	if [ -n "${PERSISTENT}" ]
@@ -940,7 +940,7 @@ setup_unionfs ()
 
 		if [ -b "${homecow}" ]
 		then
-			mount -t $(get_fstype "${homecow}") -o rw "${homecow}" "${rootmnt}/home"
+			mount -t $(get_fstype "${homecow}") -o rw,noatime "${homecow}" "${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"
@@ -994,7 +994,7 @@ check_dev ()
 
 	if is_supported_fs ${fstype}
 	then
-		mount -t ${fstype} -o ro "${devname}" ${mountpoint} || continue
+		mount -t ${fstype} -o ro,noatime "${devname}" ${mountpoint} || continue
 
 		if is_live_path ${mountpoint}
 		then

scripts/live-bottom/01integrity_check

@@ -20,7 +20,10 @@ esac
 
 # live-initramfs script
 
-grep -qs integrity-check /proc/cmdline || exit 0
-
-cd /live/image
-md5sum -c md5sum.txt < /dev/tty8
+if grep -qs integrity-check /proc/cmdline
+then
+	cd /live/image
+	md5sum -c md5sum.txt < /dev/tty8 > /dev/tty8
+	reboot
+	while :; do sleep 60; done
+fi

scripts/live-bottom/24preseed

@@ -52,6 +52,15 @@ then
 	done
 fi
 
+reply="$(echo "GET preseed/early_command" | chroot /root debconf-communicate -fnoninteractive casper)"
+if [ "${reply#0 }" != "$reply" ]; then
+       reply="${reply#0 }"
+       sh -c "$reply"
+fi
+
+# Clear out debconf database backup files to save memory.
+rm -f /root/var/cache/debconf/*.dat-old
+
 log_end_msg
 
 exit 0