kexec

runkexec

#!/bin/bash
#
# runkexec
#
### BEGIN INIT INFO
# Provides: runkexec
# Required-Start:
# Required-Stop:
# Default-Stop:
# Description: Enable or disable fast system rebooting
# Short-Description: enable or disable fast system rebooting
### END INIT INFO

KV=`uname -r`

case "$1" in
  start|restart|load|reload)
        kexec -l --append="`cat /proc/cmdline`" --initrd=/boot/initramfs-${KV}.img \
            /boot/vmlinuz-${KV}
        ;;
  stop|unload)
        kexec -u && echo "Target kexec kernel unloaded."
        ;;
  status)
        echo "Status not available for kexec."
        ;;
  *)
        echo "Usage: runkexec {start|restart|load|reload|stop|unload|status}"
        exit 2
esac
exit 0