Fast reboots for X86 OpenWRT machines

openwrt-x86-kexec-reboot.sh

#!/bin/sh

unset TERM
export LC_ALL=C

if [ "$__KEXEC_REBOOT_NOHUP" != "1" ]
then
	SCRIPTPATH=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
	__KEXEC_REBOOT_NOHUP=1 nohup "$SCRIPTPATH/$(basename -- "$0")" "$@" > /dev/null 2>&1  </dev/null &
	exit "$?"
fi

kexec --load /boot/vmlinuz --reuse-cmdline
for i in /etc/rc.d/K*; do
	if [ -x "$i" ]
	then
		"$i" stop > /dev/null 2>&1  </dev/null
	fi
done

kexec --exec
exit "$?"