diff -Nru dbconfig-common-1.8.41/debian/changelog dbconfig-common-1.8.41ubuntu1/debian/changelog
--- dbconfig-common-1.8.41/debian/changelog	2009-03-15 05:46:17.000000000 -0500
+++ dbconfig-common-1.8.41ubuntu1/debian/changelog	2009-06-23 00:01:42.000000000 -0500
@@ -1,3 +1,10 @@
+dbconfig-common (1.8.41ubuntu1) karmic; urgency=low
+
+  * This fix verifies that dbc_dbtype is set when used with multiple db's.
+    thx Sylvain Garcia (LP: #252882)
+
+ -- Charlie Smotherman <cjsmo@ubuntu.com>  Mon, 22 Jun 2009 23:47:39 -0500
+
 dbconfig-common (1.8.41) unstable; urgency=low
 
   * Fix for a location in the code where ucf was not being called with the
diff -Nru dbconfig-common-1.8.41/debian/control dbconfig-common-1.8.41ubuntu1/debian/control
--- dbconfig-common-1.8.41/debian/control	2009-03-15 05:44:33.000000000 -0500
+++ dbconfig-common-1.8.41ubuntu1/debian/control	2009-06-22 23:37:16.000000000 -0500
@@ -1,7 +1,8 @@
 Source: dbconfig-common
 Section: admin
 Priority: optional
-Maintainer: Sean Finney <seanius@debian.org>
+Maintainer: Ubuntu MOTU Developers <ubuntu-motu@lists.ubuntu.com>
+XSBC-Original-Maintainer: Sean Finney <seanius@debian.org>
 Build-Depends: debhelper (>= 4.0.0), debiandoc-sgml, po-debconf, ghostscript, texlive-latex-recommended, texlive-latex-extra, texlive-fonts-recommended
 Standards-Version: 3.8.1
 Vcs-Git: git://git.debian.org/git/dbconfig-common/dbconfig-common.git
diff -Nru dbconfig-common-1.8.41/dpkg/common dbconfig-common-1.8.41ubuntu1/dpkg/common
--- dbconfig-common-1.8.41/dpkg/common	2009-02-17 16:05:34.000000000 -0600
+++ dbconfig-common-1.8.41ubuntu1/dpkg/common	2009-06-22 23:40:28.000000000 -0500
@@ -258,7 +258,8 @@
 	fi
 
 	# for authenticated-only dbtypes.  also catches empty (multidb) type.
-	if echo "$dbc_authenticated_dbtypes" | grep -q "$dbc_dbtype"; then
+	if [$dbc_dbtype ] && echo "$dbc_authenticated_dbtypes" | grep -q "$dbc_dbtype"; then
+
 		# set app user
 		if [ "$dbc_dbuser" ]; then
 			db_set $dbc_package/db/app-user "$dbc_dbuser"