Copy the temporary rules from /run/ to /etc/

They are created by write_net_rules in early boot and need to be copied
to the root file system once it has been remounted read/write.

debian/changelog

@@ -51,6 +51,8 @@ systemd (204-9) UNRELEASED; urgency=medium
     devices installed. Since the common case is having a single device
     then everything will work out just fine most of the times...
     (Closes: #655924)
+  * Fix write_net_rules for systemd and sysvinit users by copying the
+    temporary rules from /run/udev/ to /etc/udev/. (Closes: #735563)
 
   [ Michael Stapelberg ]
   * Add systemd-dbg package, thanks Daniel Schaal (Closes: #742724).

debian/extra/udev-finish

+#!/bin/sh -e
+
+# Copy any rules generated while the root filesystem was read-only
+for file in /run/udev/tmp-rules--*; do
+  [ -e "$file" ] || continue
+  cat "$file" >> "/etc/udev/rules.d/${file##*tmp-rules--}"
+  rm -f "$file"
+done
+

debian/extra/udev-finish.service

+[Unit]
+Description=Copy rules generated while the root was ro
+DefaultDependencies=no
+After=systemd-udevd.service systemd-udev-settle.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/lib/udev/udev-finish

debian/rules

@@ -127,6 +127,7 @@ override_dh_install:
 		debian/extra/dsl-modem.agent \
 		debian/extra/logger.agent \
 		debian/extra/net.agent \
+		debian/extra/udev-finish \
 		debian/extra/write_net_rules \
 		debian/udev/lib/udev/
 	# systemd
@@ -138,6 +139,9 @@ override_dh_install:
 	install --mode=644 debian/debian-fixup.service debian/ifup@.service \
 		debian/units/run-lock.mount debian/units/run-user.mount \
 		debian/systemd/lib/systemd/system/
+	install --mode=644 debian/extra/udev-finish.service \
+		debian/udev/lib/systemd/system/
+	ln -s ../udev-finish.service debian/udev/lib/systemd/system/sysinit.target.wants/
 	install --mode=755 debian/debian-fixup \
 		debian/systemd/lib/systemd/
 	install --mode=755 debian/systemd-logind-launch \

debian/udev.udev-finish.init

+#!/bin/sh -e
+### BEGIN INIT INFO
+# Provides:          udev-finish
+# Required-Start:    udev $local_fs
+# Required-Stop:     
+# Default-Start:     S
+# Default-Stop:
+# Short-Description: Copy rules generated while the root was ro
+### END INIT INFO
+
+PATH="/sbin:/bin"
+
+case "$1" in
+  start) ;;
+  stop|restart|force-reload) exit 0 ;;
+  *) echo "Usage: $0 {start|stop|restart|force-reload}" >&2; exit 1 ;;
+esac
+
+exec /lib/udev/udev-finish
+

debian/udev.udev-finish.upstart

@@ -21,10 +21,5 @@ script
     fi
 
     # Copy any rules generated while the root filesystem was read-only
-    for file in /run/tmp-rules--*
-    do
-	[ -e "$file" ] || continue
-	cat "$file" >> "/etc/udev/rules.d/${file##*tmp-rules--}"
-	rm -f "$file"
-    done
+    /lib/udev/udev-finish
 end script