diff -urNH oss-v4.0-build1016-src-gpl/EULA oss-v4.0-build1016-src-gpl-modified/EULA
--- oss-v4.0-build1016-src-gpl/EULA	1970-01-01 01:00:00.000000000 +0100
+++ oss-v4.0-build1016-src-gpl-modified/EULA	2008-06-20 19:59:42.251393209 +0200
@@ -0,0 +1,25 @@
+Upstream sources are at:
+  http://www.opensound.com
+
+Authors:
+  4Front Technologies ( http://www.4front-tech.com )
+
+Copyright:
+   Copyright (C) 2006-2008 Hannu Savolainen and Dev Mazumdar.
+   All rights reserved. 
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 dated June, 1991.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+
+On Debian GNU/Linux systems, the complete text of the GNU General
+Public License can be found in `/usr/share/common-licenses/GPL'.
diff -urNH oss-v4.0-build1016-src-gpl/setup/Linux/postinst oss-v4.0-build1016-src-gpl-modified/setup/Linux/postinst
--- oss-v4.0-build1016-src-gpl/setup/Linux/postinst	2008-06-17 07:53:29.000000000 +0200
+++ oss-v4.0-build1016-src-gpl-modified/setup/Linux/postinst	2008-06-20 19:09:17.026205985 +0200
@@ -1,8 +1,12 @@
 #!/bin/sh
+if [ -e /tmp/OSS_UPGRADE ]; then rm /tmp/OSS_UPGRADE; fi
+if [ -e /etc/oss.conf ]; then true; else echo "OSSLIBDIR=/usr/lib/oss" > /etc/oss.conf; fi
 echo "Building OSS Modules for Linux-`uname -p` `uname -r`"
 cd /usr/lib/oss/build
 sh install.sh
 if [ -x /usr/bin/update-menus ]; then /usr/bin/update-menus; fi
+echo "Forcing re-detection of installed soundcards"
+ossdetect
 echo "Starting Open Sound System"
 sync
 /usr/sbin/soundoff >> /dev/null 2>&1
diff -urNH oss-v4.0-build1016-src-gpl/setup/Linux/postrm oss-v4.0-build1016-src-gpl-modified/setup/Linux/postrm
--- oss-v4.0-build1016-src-gpl/setup/Linux/postrm	2008-06-17 07:53:29.000000000 +0200
+++ oss-v4.0-build1016-src-gpl-modified/setup/Linux/postrm	2008-06-20 17:40:40.469766572 +0200
@@ -1,4 +1,4 @@
 #!/bin/sh
-rm -rf /usr/lib/oss/*
+if [ -e /tmp/OSS_UPGRADE ]; then echo "Upgrading OSS - will not purge /usr/lib/oss."; else rm -rf /usr/lib/oss/*; fi
 rm -f /usr/lib/libflashsupport.so
 if [ -x /usr/bin/update-menus ]; then /usr/bin/update-menus; fi
diff -urNH oss-v4.0-build1016-src-gpl/setup/Linux/preinst oss-v4.0-build1016-src-gpl-modified/setup/Linux/preinst
--- oss-v4.0-build1016-src-gpl/setup/Linux/preinst	2008-06-17 07:53:29.000000000 +0200
+++ oss-v4.0-build1016-src-gpl-modified/setup/Linux/preinst	2008-06-20 17:40:40.469766572 +0200
@@ -2,4 +2,5 @@
 if [ -x /etc/init.d/alsa-utils ]; then /etc/init.d/alsa-utils stop || true; fi
 if [ -x /usr/sbin/alsa ]; then /usr/sbin/alsa force-unload || true; fi
 if [ -x /etc/init.d/alsa ]; then /etc/init.d/alsa force-unload || true; fi
+touch /tmp/OSS_UPGRADE
 exit 0