Merging casper 1.233.

1 files changed, 49 insertions, 14 deletions

diff --git a/scripts/live b/scripts/live
index 7acf0d9..ec3a639 100755
--- a/scripts/live
+++ b/scripts/live
@@ -43,6 +43,35 @@ then
 	touch /live.vars
 fi
 
+network_started=
+
+start_network ()
+{
+	[ -z "$network_started" ] || return
+	[ -z "$NETBOOT" ] || return
+
+	mount -n -o bind /sys /root/sys
+	mount -n -o bind /proc /root/proc
+	mount -n -o bind /dev /root/dev
+	mkdir -p /root/var/run/network
+
+	# Close inherited fd's to prevent debconf-communicate from
+	# continuing to run post-live-initramfs.
+	chroot /root dhclient eth0 3>&- 4<&-
+
+	network_started=1
+}
+
+stop_network ()
+{
+	[ "$network_started" ] || return
+
+	chroot /root ifconfig eth0 down
+	umount /root/sys
+	umount /root/proc
+	umount /root/dev
+}
+
 Arguments ()
 {
 	PRESEEDS=""
@@ -431,19 +460,8 @@ Arguments ()
 			url=*)
 				URL_LOCATION="${ARGUMENT#url=}"
 
-				mount -o bind /sys /root/sys
-				mount -o bind /proc /root/proc
-				mount -o bind /dev /root/dev
-
-				mkdir -p /root/var/run/network
-				[ "${NETBOOT}" ] || chroot /root dhclient eth0
+				start_network
 				chroot /root wget -P /tmp "${URL_LOCATION}"
-				[ "${NETBOOT}" ] || chroot /root ifconfig eth0 down
-
-				umount /root/sys
-				umount /root/proc
-				umount /root/dev
-
 				LOCATIONS="/tmp/$(basename ${URL_LOCATION}) ${LOCATIONS}"
 				;;
 
@@ -1895,10 +1913,18 @@ mountroot ()
 	mkfifo /tmp/debconf-in.fifo
 	mkfifo /tmp/debconf-out.fifo
 
-	chroot /root debconf-communicate -fnoninteractive live-initramfs > /tmp/debconf-out.fifo < /tmp/debconf-in.fifo &
+	# Make the template database read-only, so that passthrough debconf
+	# instances can write to it directly; otherwise templates are only
+	# passed through when necessary.  Use temporary config databases as
+	# well; we'll copy their contents back at the end.
+	DEBCONF_TMPDIR="$(chroot /root mktemp -dt debconf.XXXXXX)"
+	cp -a /root/var/cache/debconf/config.dat "/root$DEBCONF_TMPDIR/"
+	cp -a /root/var/cache/debconf/passwords.dat "/root$DEBCONF_TMPDIR/"
+	sed "s,^Filename: /var/cache/debconf/\(config\|passwords\).dat$,Filename: $DEBCONF_TMPDIR/\1.dat,; /^Name: templatedb/a\
++Readonly: true" /root/etc/debconf.conf >"/root$DEBCONF_TMPDIR/debconf.conf"
 
 	# Save the PID so it can be killed later.
-	DEBCONF_COMMUNICATE_PID="$!"
+	DEBCONF_SYSTEMRC="$DEBCONF_TMPDIR/debconf.conf" chroot /root debconf-communicate -fnoninteractive live-initramfs > /tmp/debconf-out.fifo < /tmp/debconf-in.fifo &
 
 	if [ ! -p /tmp/debconf-in.fifo ] || [ ! -p /tmp/debconf-out.fifo ]
 	then
@@ -1927,6 +1953,15 @@ mountroot ()
 	rm -f /tmp/debconf-in.fifo
 	rm -f /tmp/debconf-out.fifo
 
+	# Copy config database changes back to the master files.
+	chroot /root debconf-copydb tmpdb config \
+		--config=Name:tmpdb --config=Driver:File \
+		--config="Filename:$DEBCONF_TMPDIR/config.dat"
+	chroot /root debconf-copydb tmpdb passwords \
+		--config=Name:tmpdb --config=Driver:File \
+		--config="Filename:$DEBCONF_TMPDIR/passwords.dat"
+	rm -rf "$DEBCONF_TMPDIR"
+
 	exec 1>&6 6>&-
 	exec 2>&7 7>&-
 	kill ${tailpid}