diff --git a/templates/shadow/INSTALL b/templates/shadow/INSTALL
index 8f9bf110fd2..29213df8cc3 100644
--- a/templates/shadow/INSTALL
+++ b/templates/shadow/INSTALL
@@ -44,23 +44,18 @@ _EOF
 	echo "Created default /etc/group file."
 }
 
-case "$2" in
+case "${ACTION}" in
 pre)
 	;;
 post)
-	echo "Running $3-$4 post installation hooks..."
-	if [ "$1" = "NOTSET" ]; then
-		run_cmd="pwconv"
-	else
-		run_cmd="chroot $1 pwconv"
-	fi
+	echo "Running ${PKGNAME}-${VERSION} post installation hooks..."
 
 	[ ! -f ./etc/passwd ] && create_passwd
 	[ ! -f ./etc/group ] && create_group
 
 	if [ ! -f ./etc/shadow ]; then
-		echo "Enabling shadow passwords..."
-		${run_cmd}
+		echo "Enabling shadowed (group) passwords..."
+		pwconv && grpconv
 	fi
 	;;
 esac