diff --git a/scripts/Create-UpdList b/scripts/Create-UpdList
index 2f149578b..db07b84fa 100755
--- a/scripts/Create-UpdList
+++ b/scripts/Create-UpdList
@@ -24,11 +24,14 @@
 
 config=default
 ignore_chksum=0
+root=
 
 while [ "$1" ] ; do
         case "$1" in
             -cfg)
                 config=$2 ; shift ; shift ;;
+	    -root)
+		root=$2 ; shift ; shift ;;
 	    -ignore-chksum)
 		ignore_chksum=1 ; shift ;;
             *)
@@ -63,18 +66,18 @@ while read package ; do
 		echo "$package: No such package."
 	elif [ "$confdir" = X ] ; then
 		echo "$package: Package in multiple trees."
-	elif [ ! -f /var/adm/packages/$package ] ; then
+	elif [ ! -f $root/var/adm/packages/$package ] ; then
 		echo "$package: Not installed."
 	else
 		o_ver=$(grep '^Package Name and Version' \
-				/var/adm/packages/$package | cut -f6 -d' ')
+				$root/var/adm/packages/$package | cut -f6 -d' ')
 		n_ver=$(grep '^\[V\] ' $confdir/$package.desc | cut -f2 -d' ')
 		if [ "$o_ver" != "$n_ver" -a "$n_ver" != "0000" ] ; then
 			echo "$package: New version ($o_ver -> $n_ver)."
 		else
 		  if [ $ignore_chksum = 0 ] ; then
 			o_ck=$(grep '^ROCK Linux Package Source Checksum' \
-				/var/adm/packages/$package | cut -f6 -d' ')
+				$root/var/adm/packages/$package | cut -f6 -d' ')
 			n_ck=$(md5sum package/*/$package/* 2> /dev/null | \
                                 grep -v '\.cache$' | md5sum | cut -f1 -d' ')
 			if [ "$o_ck" != "$n_ck" ] ; then