Idunn is an small system aiming to give an early rescue/install environment with ssh support, making life easier when one doesn't have physical access to machine.
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#!/bin/sh
# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: target/idunn/initramfs/init.sh
# Copyright (C) 2008 - 2009 The OpenSDE Project
#
# More information can be found in the files COPYING and README.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---
export PATH
LOG=/var/log/init.log
# catch some signals
#
shutoff_handler() {
local x=
# just once!
ln -s / /var/run/init.lock 2> /dev/null || return
# stop services
/etc/rc.d/rc.shutdown -u
case "$1" in
USR1) halt -f ;;
USR2) poweroff -f ;;
*) reboot -f ;;
esac
}
for x in USR1 USR2 TERM INT; do
trap "shutoff_handler $x" $x
done
unset x
# start the world
(
/etc/rc.d/rc.sysinit
/etc/rc.d/rc.trymount
if [ ! -e /var/run/.idunn-stop ]; then
/etc/rc.d/rc.tryresume
fi
) 2>&1 | tee -a $LOG
if [ ! -e /var/run/.idunn-resume ]; then
# attach a console
ln -s /etc/console /var/service/
fi
while true; do
sleep 1;
if [ -e /var/run/.idunn-resume ]; then
# switch_root requested
. /etc/conf/idunn
echo "switch_root in progress, you will be disconnected now." | wall
# stop services
/etc/rc.d/rc.shutdown
# terminate the rest
/etc/rc.d/rc.switchroot stop
# and proceed
exec switch_root -c /dev/console "$rootfs" "$init" $initopt
fi
done