From 2ca27bf0012c26432c6d4963de8ed5dca0c97b6f Mon Sep 17 00:00:00 2001
From: madduck <madduck@3cfab66f-1918-0410-86b3-c06b76f9a464>
Date: Sun, 20 Aug 2006 12:08:04 +0000
Subject: save mdadm v1 -Es output for upgrades

---
 debian/mdadm.preinst | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

(limited to 'debian')

diff --git a/debian/mdadm.preinst b/debian/mdadm.preinst
index 33f01160..7032774e 100644
--- a/debian/mdadm.preinst
+++ b/debian/mdadm.preinst
@@ -5,12 +5,27 @@
 # $Id$
 #
 
-# migrate old configuration from *way back then*
-DEBIANCONFIG=/etc/default/mdadm
-OLDCONFIG=/etc/mdadm/debian.conf
-if [ -s $OLDCONFIG ] && [ ! -f $DEBIANCONFIG ]; then
-  mv $OLDCONFIG $DEBIANCONFIG
-fi
+case "$1" in
+
+  upgrade|install)
+
+    # migrate old configuration from *way back then*
+    DEBIANCONFIG=/etc/default/mdadm
+    OLDCONFIG=/etc/mdadm/debian.conf
+    if [ -s $OLDCONFIG ] && [ ! -f $DEBIANCONFIG ]; then
+      mv $OLDCONFIG $DEBIANCONFIG
+    fi
+
+    # save the v1 output of -Es just in case we need it for upgrades
+    MDADM="$(command -v mdadm 2>/dev/null)"
+    if [ -x "$MDADM" ] && dpkg --compare-versions "$2" lt 2; then
+      echo DEVICE partitions > /var/backups/mdadm-Es_v1.dump
+      $MDADM -Esc /var/backups/mdadm-Es_v1.dump >> /var/backups/mdadm-Es_v1.dump
+    fi
+  ;;
+
+  *) :;;
+esac
 
 # See #369953
 set +u
-- 
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