Adding debconf note when run on non-systemd systems (Closes: #1037496).

Signed-off-by: Daniel Baumann <daniel@debian.org>

debian/mdadm.config

@@ -32,6 +32,19 @@ fi
 
 db_capb escape
 
+# if system has root on md
+if findmnt / 2>/dev/null | grep -qs \/dev\/md && \
+# and system is not a container
+! grep -qs ':cpuset:/$' /proc/1/cgroup && \
+# and system is not a chroot
+[ "$(stat -c %d/%i /)" != "$(stat -Lc %d/%i /proc/1/root 2>/dev/null)" ] && \
+# and systemd is not running
+[ -z "$(pidof systemd)" ]
+then
+	db_input high mdadm/init-system-not-systemd || true
+	db_go
+fi
+
 db_input medium mdadm/autocheck || :
 db_go
 

debian/mdadm.templates

@@ -7,6 +7,16 @@
 # Even minor modifications require translation updates and such
 # changes should be coordinated with translators and reviewers.
 
+Template: mdadm/init-system-not-systemd
+Type: note
+_Description: no systemd init-system detected
+ The root filesystem of this system was detected to be on a RAID device,
+ so mdadm might be required to run during boot to properly start your system.
+ .
+ Beginning with newer versions of the mdadm package, init-system integration
+ is available for systemd only. This system seems to use an alternative
+ init-system which might or might not leave your system unbootable.
+
 Template: mdadm/autocheck
 Type: boolean
 Default: true