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 ()
+{
+ [ "$network_started" ] || return
+
+ chroot /root ifconfig eth0 down
+ umount /root/sys
+ umount /root/proc
+ umount /root/dev
+}
+
Arguments ()
{
PRESEEDS=""
url=*)
URL_LOCATION="${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}) ${LOCATIONS}"
;;
mkfifo /tmp/debconf-in.fifo
mkfifo /tmp/debconf-out.fifo
- chroot /root debconf-communicate -fnoninteractive live-initramfs > /tmp/debconf-out.fifo < /tmp/debconf-in.fifo &
+ # Make the template database read-only, so that passthrough debconf
+ # instances can write to it directly; otherwise templates are only
+ # passed through when necessary. Use temporary config databases as
+ # well; we'll copy their contents back at the end.
+ DEBCONF_TMPDIR="$(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
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}