#!/bin/sh
PATH=/bin:/sbin:/usr/bin:/usr/sbin; export PATH

[ "$(id -u)" = 0 ] || { echo "need root" >&2; exit 1; }
ROOT=$(showtrans / 2>/dev/null)
echo "root: $ROOT"
case "$ROOT" in *wd[0-9]*) echo "root is on wd*; boot USB first"; exit 1;; esac

RUMP=; ACPI=
for c in /hurd/rumpdisk /hurd/rumpdisk.static; do [ -x "$c" ] && RUMP=$c; done
for c in /hurd/acpi     /hurd/acpi.static;     do [ -x "$c" ] && ACPI=$c; done
[ -n "$RUMP" ] || { echo "no rumpdisk binary"; exit 1; }
echo "rumpdisk=$RUMP acpi=$ACPI"

showtrans /servers/acpi 2>&1
if ! showtrans /servers/acpi >/dev/null 2>&1; then
  settrans -ck /servers/acpi "$ACPI"; sleep 1
fi
ps -e -o pid,comm 2>/dev/null | grep -E 'acpi|rumpdisk|pci-arbiter'

echo "--- before ---"
ls -l /dev/wd* 2>&1
for p in $(ps -e -o pid,comm 2>/dev/null | awk '$2=="rumpdisk"{print $1}'); do kill "$p"; done
sleep 1

echo "--- start rumpdisk ---"
settrans -g /dev/rumpdisk 2>/dev/null
settrans -ck /dev/rumpdisk "$RUMP"
sleep 2; showtrans /dev/rumpdisk >/dev/null 2>&1; sleep 3

echo "--- after ---"
ls -l /dev/wd* 2>&1 || echo "  (none)"
for d in /dev/wd0 /dev/wd1; do
  [ -e "$d" ] || continue
  echo "-- $d --"
  if dd if="$d" bs=512 count=1 of=/tmp/wd.sec 2>/dev/null; then
    od -An -tx1 -N32 /tmp/wd.sec; echo "  read OK"
  else
    echo "  read FAILED"
  fi
done
showtrans /dev/rumpdisk 2>&1