Rename the existing rd_DASD module handler to rd_DASD_MOD.
--- /dev/null
+#!/bin/bash
+arch=$(uname -m)
+[ "$arch" = "s390" -o "$arch" = "s390x" ] || exit 1
+
+exit 0
--- /dev/null
+#!/bin/bash
+inst_hook cmdline 30 "$moddir/parse-dasd.sh"
+
--- /dev/null
+#!/bin/bash
+
+instmods dasd_mod dasd_eckd_mod dasd_fba_mod dasd_diag_mod
+
+
--- /dev/null
+[ -d /etc/modprobe.d ] || mkdir /etc/modprobe.d
+
+dasd_arg=$(getarg rd_DASD_MOD=)
+if [ -n "$dasd_arg" ]; then
+ echo "options dasd_mod dasd=$dasd_arg" >> /etc/modprobe.d/dasd.conf
+fi
+unset dasd_arg