--- /dev/null
+#!/bin/sh
+
+SRCDIR=${SRCDIR:-$(dirname $0)}
+
+tmpcpio=$(mktemp)
+catcpio=$(mktemp)
+uimage=$(mktemp)
+
+gen_init_cpio - <<EOF > $tmpcpio
+dir /etc 0755 0 0
+dir /etc/init.d 0755 0 0
+file /etc/init.d/S50benchmark $SRCDIR/../bench.sh 0755 0 0
+dir /bin 0755 0 0
+file /bin/can_recvmmsg can_recvmmsg 0755 0 0
+EOF
+
+cat $SRCDIR/rootfs.cpio $tmpcpio > $catcpio
+mkimage -T ramdisk -A powerpc -O linux -d $catcpio $uimage >&2
+cat $uimage
+
+rm $catcpio $tmpcpio $uimage